Home / 1,186,972.38-1,780,460.80-288,414.88

Finding the Fourth Proportional to 1,186,972.38, 1,780,460.80 and 288,414.88

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Solution

The fourth proportional to 1,186,972.38, 1,780,460.80 and 288,414.88 is: 432,622.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,972.38 : 1,780,460.80 = 288,414.88 : x
  2. Step 2: Convert to fraction form
    1,186,972.38/1,780,460.80 = 288,414.88/x
  3. Step 3: Cross multiply
    1,186,972.38x = 1,780,460.80 × 288,414.88
  4. Step 4: Simplify right side
    1,186,972.38x = 513,511,382,804.52
  5. Step 5: Solve for x
    x = 513,511,382,804.52/1,186,972.38
  6. Step 6: Final answer
    x = 432,622.86

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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.