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Finding the Fourth Proportional to 542,899.59, 814,090.14 and 318,328.41

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Solution

The fourth proportional to 542,899.59, 814,090.14 and 318,328.41 is: 477,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,899.59 : 814,090.14 = 318,328.41 : x
  2. Step 2: Convert to fraction form
    542,899.59/814,090.14 = 318,328.41/x
  3. Step 3: Cross multiply
    542,899.59x = 814,090.14 × 318,328.41
  4. Step 4: Simplify right side
    542,899.59x = 259,148,019,862.88
  5. Step 5: Solve for x
    x = 259,148,019,862.88/542,899.59
  6. Step 6: Final answer
    x = 477,340.61

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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.