Home / 830,292-1,245,439.20-231,254.88

Finding the Fourth Proportional to 830,292, 1,245,439.20 and 231,254.88

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Solution

The fourth proportional to 830,292, 1,245,439.20 and 231,254.88 is: 346,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,292 : 1,245,439.20 = 231,254.88 : x
  2. Step 2: Convert to fraction form
    830,292/1,245,439.20 = 231,254.88/x
  3. Step 3: Cross multiply
    830,292x = 1,245,439.20 × 231,254.88
  4. Step 4: Simplify right side
    830,292x = 288,013,892,743.30
  5. Step 5: Solve for x
    x = 288,013,892,743.30/830,292
  6. Step 6: Final answer
    x = 346,882.65

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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.