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Finding the Fourth Proportional to 542,487.71, 813,866.85 and 382,875.41

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Solution

The fourth proportional to 542,487.71, 813,866.85 and 382,875.41 is: 574,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,487.71 : 813,866.85 = 382,875.41 : x
  2. Step 2: Convert to fraction form
    542,487.71/813,866.85 = 382,875.41/x
  3. Step 3: Cross multiply
    542,487.71x = 813,866.85 × 382,875.41
  4. Step 4: Simplify right side
    542,487.71x = 311,609,603,879.16
  5. Step 5: Solve for x
    x = 311,609,603,879.16/542,487.71
  6. Step 6: Final answer
    x = 574,408.60

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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.