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Finding the Fourth Proportional to 500,305.27, 750,456.28 and 386,618.12

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Solution

The fourth proportional to 500,305.27, 750,456.28 and 386,618.12 is: 579,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,305.27 : 750,456.28 = 386,618.12 : x
  2. Step 2: Convert to fraction form
    500,305.27/750,456.28 = 386,618.12/x
  3. Step 3: Cross multiply
    500,305.27x = 750,456.28 × 386,618.12
  4. Step 4: Simplify right side
    500,305.27x = 290,139,994,182.70
  5. Step 5: Solve for x
    x = 290,139,994,182.70/500,305.27
  6. Step 6: Final answer
    x = 579,925.93

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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.