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Finding the Fourth Proportional to 635,339.38, 947,404.52 and 547,159.54

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Solution

The fourth proportional to 635,339.38, 947,404.52 and 547,159.54 is: 815,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,339.38 : 947,404.52 = 547,159.54 : x
  2. Step 2: Convert to fraction form
    635,339.38/947,404.52 = 547,159.54/x
  3. Step 3: Cross multiply
    635,339.38x = 947,404.52 × 547,159.54
  4. Step 4: Simplify right side
    635,339.38x = 518,381,421,357.12
  5. Step 5: Solve for x
    x = 518,381,421,357.12/635,339.38
  6. Step 6: Final answer
    x = 815,912.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.