Home / 1,087,763.88-1,500,631.20-724,833.66

Finding the Fourth Proportional to 1,087,763.88, 1,500,631.20 and 724,833.66

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Solution

The fourth proportional to 1,087,763.88, 1,500,631.20 and 724,833.66 is: 999,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,763.88 : 1,500,631.20 = 724,833.66 : x
  2. Step 2: Convert to fraction form
    1,087,763.88/1,500,631.20 = 724,833.66/x
  3. Step 3: Cross multiply
    1,087,763.88x = 1,500,631.20 × 724,833.66
  4. Step 4: Simplify right side
    1,087,763.88x = 1,087,708,005,006.19
  5. Step 5: Solve for x
    x = 1,087,708,005,006.19/1,087,763.88
  6. Step 6: Final answer
    x = 999,948.63

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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.