Home / 859,008.30-1,288,512.45-680,549.10

Finding the Fourth Proportional to 859,008.30, 1,288,512.45 and 680,549.10

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Solution

The fourth proportional to 859,008.30, 1,288,512.45 and 680,549.10 is: 1,020,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,008.30 : 1,288,512.45 = 680,549.10 : x
  2. Step 2: Convert to fraction form
    859,008.30/1,288,512.45 = 680,549.10/x
  3. Step 3: Cross multiply
    859,008.30x = 1,288,512.45 × 680,549.10
  4. Step 4: Simplify right side
    859,008.30x = 876,895,988,186.30
  5. Step 5: Solve for x
    x = 876,895,988,186.30/859,008.30
  6. Step 6: Final answer
    x = 1,020,823.65

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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.