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Finding the Fourth Proportional to 424,736.39, 637,103.82 and 291,211.85

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Solution

The fourth proportional to 424,736.39, 637,103.82 and 291,211.85 is: 436,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,736.39 : 637,103.82 = 291,211.85 : x
  2. Step 2: Convert to fraction form
    424,736.39/637,103.82 = 291,211.85/x
  3. Step 3: Cross multiply
    424,736.39x = 637,103.82 × 291,211.85
  4. Step 4: Simplify right side
    424,736.39x = 185,532,182,064.27
  5. Step 5: Solve for x
    x = 185,532,182,064.27/424,736.39
  6. Step 6: Final answer
    x = 436,817.25

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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.