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Finding the Fourth Proportional to 813,802, 1,123,060.28 and 451,241.16

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Solution

The fourth proportional to 813,802, 1,123,060.28 and 451,241.16 is: 622,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,802 : 1,123,060.28 = 451,241.16 : x
  2. Step 2: Convert to fraction form
    813,802/1,123,060.28 = 451,241.16/x
  3. Step 3: Cross multiply
    813,802x = 1,123,060.28 × 451,241.16
  4. Step 4: Simplify right side
    813,802x = 506,771,023,497.13
  5. Step 5: Solve for x
    x = 506,771,023,497.13/813,802
  6. Step 6: Final answer
    x = 622,720.30

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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.