Home / 717,834.14-990,654.60-395,543.84

Finding the Fourth Proportional to 717,834.14, 990,654.60 and 395,543.84

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Solution

The fourth proportional to 717,834.14, 990,654.60 and 395,543.84 is: 545,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,834.14 : 990,654.60 = 395,543.84 : x
  2. Step 2: Convert to fraction form
    717,834.14/990,654.60 = 395,543.84/x
  3. Step 3: Cross multiply
    717,834.14x = 990,654.60 × 395,543.84
  4. Step 4: Simplify right side
    717,834.14x = 391,847,319,644.39
  5. Step 5: Solve for x
    x = 391,847,319,644.39/717,834.14
  6. Step 6: Final answer
    x = 545,874.46

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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.