Home / 717,961.73-990,782.28-395,672.04

Finding the Fourth Proportional to 717,961.73, 990,782.28 and 395,672.04

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Solution

The fourth proportional to 717,961.73, 990,782.28 and 395,672.04 is: 546,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,961.73 : 990,782.28 = 395,672.04 : x
  2. Step 2: Convert to fraction form
    717,961.73/990,782.28 = 395,672.04/x
  3. Step 3: Cross multiply
    717,961.73x = 990,782.28 × 395,672.04
  4. Step 4: Simplify right side
    717,961.73x = 392,024,845,923.45
  5. Step 5: Solve for x
    x = 392,024,845,923.45/717,961.73
  6. Step 6: Final answer
    x = 546,024.71

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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.