Home / 494,841.12-740,976.84-424,215.60

Finding the Fourth Proportional to 494,841.12, 740,976.84 and 424,215.60

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Solution

The fourth proportional to 494,841.12, 740,976.84 and 424,215.60 is: 635,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,841.12 : 740,976.84 = 424,215.60 : x
  2. Step 2: Convert to fraction form
    494,841.12/740,976.84 = 424,215.60/x
  3. Step 3: Cross multiply
    494,841.12x = 740,976.84 × 424,215.60
  4. Step 4: Simplify right side
    494,841.12x = 314,333,934,766.70
  5. Step 5: Solve for x
    x = 314,333,934,766.70/494,841.12
  6. Step 6: Final answer
    x = 635,221.94

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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.