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Finding the Fourth Proportional to 577,493.10, 865,658.01 and 240,720.15

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Solution

The fourth proportional to 577,493.10, 865,658.01 and 240,720.15 is: 360,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,493.10 : 865,658.01 = 240,720.15 : x
  2. Step 2: Convert to fraction form
    577,493.10/865,658.01 = 240,720.15/x
  3. Step 3: Cross multiply
    577,493.10x = 865,658.01 × 240,720.15
  4. Step 4: Simplify right side
    577,493.10x = 208,381,326,015.90
  5. Step 5: Solve for x
    x = 208,381,326,015.90/577,493.10
  6. Step 6: Final answer
    x = 360,837.78

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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.