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Finding the Fourth Proportional to 635,335.70, 947,399.01 and 547,155.86

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Solution

The fourth proportional to 635,335.70, 947,399.01 and 547,155.86 is: 815,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,335.70 : 947,399.01 = 547,155.86 : x
  2. Step 2: Convert to fraction form
    635,335.70/947,399.01 = 547,155.86/x
  3. Step 3: Cross multiply
    635,335.70x = 947,399.01 × 547,155.86
  4. Step 4: Simplify right side
    635,335.70x = 518,374,915,342.70
  5. Step 5: Solve for x
    x = 518,374,915,342.70/635,335.70
  6. Step 6: Final answer
    x = 815,907.12

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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.