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Finding the Fourth Proportional to 488,872.80, 733,309.20 and 355,125.60

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Solution

The fourth proportional to 488,872.80, 733,309.20 and 355,125.60 is: 532,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,872.80 : 733,309.20 = 355,125.60 : x
  2. Step 2: Convert to fraction form
    488,872.80/733,309.20 = 355,125.60/x
  3. Step 3: Cross multiply
    488,872.80x = 733,309.20 × 355,125.60
  4. Step 4: Simplify right side
    488,872.80x = 260,416,869,635.52
  5. Step 5: Solve for x
    x = 260,416,869,635.52/488,872.80
  6. Step 6: Final answer
    x = 532,688.40

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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.