Home / 800,876.61-1,105,199.32-438,293.88

Finding the Fourth Proportional to 800,876.61, 1,105,199.32 and 438,293.88

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Solution

The fourth proportional to 800,876.61, 1,105,199.32 and 438,293.88 is: 604,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,876.61 : 1,105,199.32 = 438,293.88 : x
  2. Step 2: Convert to fraction form
    800,876.61/1,105,199.32 = 438,293.88/x
  3. Step 3: Cross multiply
    800,876.61x = 1,105,199.32 × 438,293.88
  4. Step 4: Simplify right side
    800,876.61x = 484,402,098,136.16
  5. Step 5: Solve for x
    x = 484,402,098,136.16/800,876.61
  6. Step 6: Final answer
    x = 604,839.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.