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Finding the Fourth Proportional to 382,687.20, 574,030.80 and 341,352.90

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Solution

The fourth proportional to 382,687.20, 574,030.80 and 341,352.90 is: 512,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,687.20 : 574,030.80 = 341,352.90 : x
  2. Step 2: Convert to fraction form
    382,687.20/574,030.80 = 341,352.90/x
  3. Step 3: Cross multiply
    382,687.20x = 574,030.80 × 341,352.90
  4. Step 4: Simplify right side
    382,687.20x = 195,947,078,269.32
  5. Step 5: Solve for x
    x = 195,947,078,269.32/382,687.20
  6. Step 6: Final answer
    x = 512,029.35

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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.