Home / 717,962.22-990,787.86-395,672.31

Finding the Fourth Proportional to 717,962.22, 990,787.86 and 395,672.31

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Solution

The fourth proportional to 717,962.22, 990,787.86 and 395,672.31 is: 546,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,962.22 : 990,787.86 = 395,672.31 : x
  2. Step 2: Convert to fraction form
    717,962.22/990,787.86 = 395,672.31/x
  3. Step 3: Cross multiply
    717,962.22x = 990,787.86 × 395,672.31
  4. Step 4: Simplify right side
    717,962.22x = 392,027,321,286.16
  5. Step 5: Solve for x
    x = 392,027,321,286.16/717,962.22
  6. Step 6: Final answer
    x = 546,027.79

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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.