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Finding the Fourth Proportional to 536,134.88, 739,903.92 and 354,531.20

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Solution

The fourth proportional to 536,134.88, 739,903.92 and 354,531.20 is: 489,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,134.88 : 739,903.92 = 354,531.20 : x
  2. Step 2: Convert to fraction form
    536,134.88/739,903.92 = 354,531.20/x
  3. Step 3: Cross multiply
    536,134.88x = 739,903.92 × 354,531.20
  4. Step 4: Simplify right side
    536,134.88x = 262,319,024,642.30
  5. Step 5: Solve for x
    x = 262,319,024,642.30/536,134.88
  6. Step 6: Final answer
    x = 489,278.04

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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.