Home / 723,008.25-997,729.20-396,314.19

Finding the Fourth Proportional to 723,008.25, 997,729.20 and 396,314.19

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Solution

The fourth proportional to 723,008.25, 997,729.20 and 396,314.19 is: 546,901.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,008.25 : 997,729.20 = 396,314.19 : x
  2. Step 2: Convert to fraction form
    723,008.25/997,729.20 = 396,314.19/x
  3. Step 3: Cross multiply
    723,008.25x = 997,729.20 × 396,314.19
  4. Step 4: Simplify right side
    723,008.25x = 395,414,239,737.35
  5. Step 5: Solve for x
    x = 395,414,239,737.35/723,008.25
  6. Step 6: Final answer
    x = 546,901.42

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.