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Finding the Fourth Proportional to 542,729.56, 813,980.05 and 350,026.76

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Solution

The fourth proportional to 542,729.56, 813,980.05 and 350,026.76 is: 524,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,729.56 : 813,980.05 = 350,026.76 : x
  2. Step 2: Convert to fraction form
    542,729.56/813,980.05 = 350,026.76/x
  3. Step 3: Cross multiply
    542,729.56x = 813,980.05 × 350,026.76
  4. Step 4: Simplify right side
    542,729.56x = 284,914,798,968.93
  5. Step 5: Solve for x
    x = 284,914,798,968.93/542,729.56
  6. Step 6: Final answer
    x = 524,966.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.