Home / 718,180.27-991,044.25-395,873.71

Finding the Fourth Proportional to 718,180.27, 991,044.25 and 395,873.71

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Solution

The fourth proportional to 718,180.27, 991,044.25 and 395,873.71 is: 546,281.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,180.27 : 991,044.25 = 395,873.71 : x
  2. Step 2: Convert to fraction form
    718,180.27/991,044.25 = 395,873.71/x
  3. Step 3: Cross multiply
    718,180.27x = 991,044.25 × 395,873.71
  4. Step 4: Simplify right side
    718,180.27x = 392,328,364,021.67
  5. Step 5: Solve for x
    x = 392,328,364,021.67/718,180.27
  6. Step 6: Final answer
    x = 546,281.18

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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.