Home / 1,689,422.91-2,331,385.05-915,034.50

Finding the Fourth Proportional to 1,689,422.91, 2,331,385.05 and 915,034.50

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Solution

The fourth proportional to 1,689,422.91, 2,331,385.05 and 915,034.50 is: 1,262,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,422.91 : 2,331,385.05 = 915,034.50 : x
  2. Step 2: Convert to fraction form
    1,689,422.91/2,331,385.05 = 915,034.50/x
  3. Step 3: Cross multiply
    1,689,422.91x = 2,331,385.05 × 915,034.50
  4. Step 4: Simplify right side
    1,689,422.91x = 2,133,297,753,534.23
  5. Step 5: Solve for x
    x = 2,133,297,753,534.23/1,689,422.91
  6. Step 6: Final answer
    x = 1,262,737.55

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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.