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Finding the Fourth Proportional to 479,034.47, 717,959.99 and 411,088.91

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Solution

The fourth proportional to 479,034.47, 717,959.99 and 411,088.91 is: 616,125.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,034.47 : 717,959.99 = 411,088.91 : x
  2. Step 2: Convert to fraction form
    479,034.47/717,959.99 = 411,088.91/x
  3. Step 3: Cross multiply
    479,034.47x = 717,959.99 × 411,088.91
  4. Step 4: Simplify right side
    479,034.47x = 295,145,387,150.63
  5. Step 5: Solve for x
    x = 295,145,387,150.63/479,034.47
  6. Step 6: Final answer
    x = 616,125.57

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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.