Home / 764,228.80-1,146,343.20-432,452.80

Finding the Fourth Proportional to 764,228.80, 1,146,343.20 and 432,452.80

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Solution

The fourth proportional to 764,228.80, 1,146,343.20 and 432,452.80 is: 648,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,228.80 : 1,146,343.20 = 432,452.80 : x
  2. Step 2: Convert to fraction form
    764,228.80/1,146,343.20 = 432,452.80/x
  3. Step 3: Cross multiply
    764,228.80x = 1,146,343.20 × 432,452.80
  4. Step 4: Simplify right side
    764,228.80x = 495,739,326,600.96
  5. Step 5: Solve for x
    x = 495,739,326,600.96/764,228.80
  6. Step 6: Final answer
    x = 648,679.20

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Half scale
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Double scale
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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.