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Finding the Fourth Proportional to 488,137.30, 732,862.05 and 311,427.70

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Solution

The fourth proportional to 488,137.30, 732,862.05 and 311,427.70 is: 467,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,137.30 : 732,862.05 = 311,427.70 : x
  2. Step 2: Convert to fraction form
    488,137.30/732,862.05 = 311,427.70/x
  3. Step 3: Cross multiply
    488,137.30x = 732,862.05 × 311,427.70
  4. Step 4: Simplify right side
    488,137.30x = 228,233,542,648.79
  5. Step 5: Solve for x
    x = 228,233,542,648.79/488,137.30
  6. Step 6: Final answer
    x = 467,560.14

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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.