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Finding the Fourth Proportional to 813,807, 1,123,067.18 and 451,246.16

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Solution

The fourth proportional to 813,807, 1,123,067.18 and 451,246.16 is: 622,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,807 : 1,123,067.18 = 451,246.16 : x
  2. Step 2: Convert to fraction form
    813,807/1,123,067.18 = 451,246.16/x
  3. Step 3: Cross multiply
    813,807x = 1,123,067.18 × 451,246.16
  4. Step 4: Simplify right side
    813,807x = 506,779,752,397.03
  5. Step 5: Solve for x
    x = 506,779,752,397.03/813,807
  6. Step 6: Final answer
    x = 622,727.20

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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.