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Finding the Fourth Proportional to 577,730.72, 797,487 and 517,192.58

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Solution

The fourth proportional to 577,730.72, 797,487 and 517,192.58 is: 713,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,730.72 : 797,487 = 517,192.58 : x
  2. Step 2: Convert to fraction form
    577,730.72/797,487 = 517,192.58/x
  3. Step 3: Cross multiply
    577,730.72x = 797,487 × 517,192.58
  4. Step 4: Simplify right side
    577,730.72x = 412,454,359,046.46
  5. Step 5: Solve for x
    x = 412,454,359,046.46/577,730.72
  6. Step 6: Final answer
    x = 713,921.46

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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.