Home / 861,010.20-1,291,515.30-768,008.03

Finding the Fourth Proportional to 861,010.20, 1,291,515.30 and 768,008.03

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Solution

The fourth proportional to 861,010.20, 1,291,515.30 and 768,008.03 is: 1,152,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,010.20 : 1,291,515.30 = 768,008.03 : x
  2. Step 2: Convert to fraction form
    861,010.20/1,291,515.30 = 768,008.03/x
  3. Step 3: Cross multiply
    861,010.20x = 1,291,515.30 × 768,008.03
  4. Step 4: Simplify right side
    861,010.20x = 991,894,114,810.28
  5. Step 5: Solve for x
    x = 991,894,114,810.28/861,010.20
  6. Step 6: Final answer
    x = 1,152,012.04

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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.