Home / 1,261,730.76-1,891,185.35-662,755.20

Finding the Fourth Proportional to 1,261,730.76, 1,891,185.35 and 662,755.20

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Solution

The fourth proportional to 1,261,730.76, 1,891,185.35 and 662,755.20 is: 993,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,730.76 : 1,891,185.35 = 662,755.20 : x
  2. Step 2: Convert to fraction form
    1,261,730.76/1,891,185.35 = 662,755.20/x
  3. Step 3: Cross multiply
    1,261,730.76x = 1,891,185.35 × 662,755.20
  4. Step 4: Simplify right side
    1,261,730.76x = 1,253,392,921,562.54
  5. Step 5: Solve for x
    x = 1,253,392,921,562.54/1,261,730.76
  6. Step 6: Final answer
    x = 993,391.75

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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.