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Finding the Fourth Proportional to 515,876.48, 772,294.08 and 503,158.40

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Solution

The fourth proportional to 515,876.48, 772,294.08 and 503,158.40 is: 753,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,876.48 : 772,294.08 = 503,158.40 : x
  2. Step 2: Convert to fraction form
    515,876.48/772,294.08 = 503,158.40/x
  3. Step 3: Cross multiply
    515,876.48x = 772,294.08 × 503,158.40
  4. Step 4: Simplify right side
    515,876.48x = 388,586,253,622.27
  5. Step 5: Solve for x
    x = 388,586,253,622.27/515,876.48
  6. Step 6: Final answer
    x = 753,254.45

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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.