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Finding the Fourth Proportional to 488,272.70, 732,409.05 and 409,540.70

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Solution

The fourth proportional to 488,272.70, 732,409.05 and 409,540.70 is: 614,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,272.70 : 732,409.05 = 409,540.70 : x
  2. Step 2: Convert to fraction form
    488,272.70/732,409.05 = 409,540.70/x
  3. Step 3: Cross multiply
    488,272.70x = 732,409.05 × 409,540.70
  4. Step 4: Simplify right side
    488,272.70x = 299,951,315,023.34
  5. Step 5: Solve for x
    x = 299,951,315,023.34/488,272.70
  6. Step 6: Final answer
    x = 614,311.05

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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.