Home / 838,713.86-1,257,021.02-660,517.10

Finding the Fourth Proportional to 838,713.86, 1,257,021.02 and 660,517.10

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Solution

The fourth proportional to 838,713.86, 1,257,021.02 and 660,517.10 is: 989,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,713.86 : 1,257,021.02 = 660,517.10 : x
  2. Step 2: Convert to fraction form
    838,713.86/1,257,021.02 = 660,517.10/x
  3. Step 3: Cross multiply
    838,713.86x = 1,257,021.02 × 660,517.10
  4. Step 4: Simplify right side
    838,713.86x = 830,283,878,769.44
  5. Step 5: Solve for x
    x = 830,283,878,769.44/838,713.86
  6. Step 6: Final answer
    x = 989,948.92

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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.