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Finding the Fourth Proportional to 542,003.01, 747,944.30 and 312,569.97

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Solution

The fourth proportional to 542,003.01, 747,944.30 and 312,569.97 is: 431,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,003.01 : 747,944.30 = 312,569.97 : x
  2. Step 2: Convert to fraction form
    542,003.01/747,944.30 = 312,569.97/x
  3. Step 3: Cross multiply
    542,003.01x = 747,944.30 × 312,569.97
  4. Step 4: Simplify right side
    542,003.01x = 233,784,925,849.82
  5. Step 5: Solve for x
    x = 233,784,925,849.82/542,003.01
  6. Step 6: Final answer
    x = 431,335.11

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1.5x scale

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.