Home / 1,117,640.62-1,676,743.89-318,925

Finding the Fourth Proportional to 1,117,640.62, 1,676,743.89 and 318,925

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Solution

The fourth proportional to 1,117,640.62, 1,676,743.89 and 318,925 is: 478,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,640.62 : 1,676,743.89 = 318,925 : x
  2. Step 2: Convert to fraction form
    1,117,640.62/1,676,743.89 = 318,925/x
  3. Step 3: Cross multiply
    1,117,640.62x = 1,676,743.89 × 318,925
  4. Step 4: Simplify right side
    1,117,640.62x = 534,755,545,118.25
  5. Step 5: Solve for x
    x = 534,755,545,118.25/1,117,640.62
  6. Step 6: Final answer
    x = 478,468.24

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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.