Home / 764,329.80-1,146,494.70-314,901.30

Finding the Fourth Proportional to 764,329.80, 1,146,494.70 and 314,901.30

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Solution

The fourth proportional to 764,329.80, 1,146,494.70 and 314,901.30 is: 472,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,329.80 : 1,146,494.70 = 314,901.30 : x
  2. Step 2: Convert to fraction form
    764,329.80/1,146,494.70 = 314,901.30/x
  3. Step 3: Cross multiply
    764,329.80x = 1,146,494.70 × 314,901.30
  4. Step 4: Simplify right side
    764,329.80x = 361,032,671,473.11
  5. Step 5: Solve for x
    x = 361,032,671,473.11/764,329.80
  6. Step 6: Final answer
    x = 472,351.95

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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.