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Finding the Fourth Proportional to 635,335.38, 947,398.55 and 547,155.54

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Solution

The fourth proportional to 635,335.38, 947,398.55 and 547,155.54 is: 815,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,335.38 : 947,398.55 = 547,155.54 : x
  2. Step 2: Convert to fraction form
    635,335.38/947,398.55 = 547,155.54/x
  3. Step 3: Cross multiply
    635,335.38x = 947,398.55 × 547,155.54
  4. Step 4: Simplify right side
    635,335.38x = 518,374,362,484.69
  5. Step 5: Solve for x
    x = 518,374,362,484.69/635,335.38
  6. Step 6: Final answer
    x = 815,906.65

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1.5x scale

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.