Home / 1,129,360.62-1,558,073.13-645,665.88

Finding the Fourth Proportional to 1,129,360.62, 1,558,073.13 and 645,665.88

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Solution

The fourth proportional to 1,129,360.62, 1,558,073.13 and 645,665.88 is: 890,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,360.62 : 1,558,073.13 = 645,665.88 : x
  2. Step 2: Convert to fraction form
    1,129,360.62/1,558,073.13 = 645,665.88/x
  3. Step 3: Cross multiply
    1,129,360.62x = 1,558,073.13 × 645,665.88
  4. Step 4: Simplify right side
    1,129,360.62x = 1,005,994,658,585.80
  5. Step 5: Solve for x
    x = 1,005,994,658,585.80/1,129,360.62
  6. Step 6: Final answer
    x = 890,764.78

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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.