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Finding the Fourth Proportional to 506,329.40, 759,494.10 and 498,456.20

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Solution

The fourth proportional to 506,329.40, 759,494.10 and 498,456.20 is: 747,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,329.40 : 759,494.10 = 498,456.20 : x
  2. Step 2: Convert to fraction form
    506,329.40/759,494.10 = 498,456.20/x
  3. Step 3: Cross multiply
    506,329.40x = 759,494.10 × 498,456.20
  4. Step 4: Simplify right side
    506,329.40x = 378,574,543,008.42
  5. Step 5: Solve for x
    x = 378,574,543,008.42/506,329.40
  6. Step 6: Final answer
    x = 747,684.30

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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.