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Finding the Fourth Proportional to 488,603.88, 733,737.96 and 318,115.80

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Solution

The fourth proportional to 488,603.88, 733,737.96 and 318,115.80 is: 477,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,603.88 : 733,737.96 = 318,115.80 : x
  2. Step 2: Convert to fraction form
    488,603.88/733,737.96 = 318,115.80/x
  3. Step 3: Cross multiply
    488,603.88x = 733,737.96 × 318,115.80
  4. Step 4: Simplify right side
    488,603.88x = 233,413,638,135.77
  5. Step 5: Solve for x
    x = 233,413,638,135.77/488,603.88
  6. Step 6: Final answer
    x = 477,715.48

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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.