Home / 764,230.80-1,146,346.20-432,454.80

Finding the Fourth Proportional to 764,230.80, 1,146,346.20 and 432,454.80

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Solution

The fourth proportional to 764,230.80, 1,146,346.20 and 432,454.80 is: 648,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,230.80 : 1,146,346.20 = 432,454.80 : x
  2. Step 2: Convert to fraction form
    764,230.80/1,146,346.20 = 432,454.80/x
  3. Step 3: Cross multiply
    764,230.80x = 1,146,346.20 × 432,454.80
  4. Step 4: Simplify right side
    764,230.80x = 495,742,916,651.76
  5. Step 5: Solve for x
    x = 495,742,916,651.76/764,230.80
  6. Step 6: Final answer
    x = 648,682.20

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Half scale
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Double scale
Find fourth proportional to 764,231.80, 1,146,347.70 and 432,455.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.