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Finding the Fourth Proportional to 635,338.38, 947,403.03 and 547,158.54

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Solution

The fourth proportional to 635,338.38, 947,403.03 and 547,158.54 is: 815,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,338.38 : 947,403.03 = 547,158.54 : x
  2. Step 2: Convert to fraction form
    635,338.38/947,403.03 = 547,158.54/x
  3. Step 3: Cross multiply
    635,338.38x = 947,403.03 × 547,158.54
  4. Step 4: Simplify right side
    635,338.38x = 518,379,658,686.38
  5. Step 5: Solve for x
    x = 518,379,658,686.38/635,338.38
  6. Step 6: Final answer
    x = 815,911.13

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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.