Home / 1,264,757.76-1,745,321.45-721,068.62

Finding the Fourth Proportional to 1,264,757.76, 1,745,321.45 and 721,068.62

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Solution

The fourth proportional to 1,264,757.76, 1,745,321.45 and 721,068.62 is: 995,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,757.76 : 1,745,321.45 = 721,068.62 : x
  2. Step 2: Convert to fraction form
    1,264,757.76/1,745,321.45 = 721,068.62/x
  3. Step 3: Cross multiply
    1,264,757.76x = 1,745,321.45 × 721,068.62
  4. Step 4: Simplify right side
    1,264,757.76x = 1,258,496,517,075.95
  5. Step 5: Solve for x
    x = 1,258,496,517,075.95/1,264,757.76
  6. Step 6: Final answer
    x = 995,049.45

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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.