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Finding the Fourth Proportional to 703,520.64, 972,145.92 and 512,201.92

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Solution

The fourth proportional to 703,520.64, 972,145.92 and 512,201.92 is: 707,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,520.64 : 972,145.92 = 512,201.92 : x
  2. Step 2: Convert to fraction form
    703,520.64/972,145.92 = 512,201.92/x
  3. Step 3: Cross multiply
    703,520.64x = 972,145.92 × 512,201.92
  4. Step 4: Simplify right side
    703,520.64x = 497,935,006,744.17
  5. Step 5: Solve for x
    x = 497,935,006,744.17/703,520.64
  6. Step 6: Final answer
    x = 707,775.97

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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.