Home / 1,072,132.07-1,479,253.89-636,187.43

Finding the Fourth Proportional to 1,072,132.07, 1,479,253.89 and 636,187.43

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Solution

The fourth proportional to 1,072,132.07, 1,479,253.89 and 636,187.43 is: 877,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,132.07 : 1,479,253.89 = 636,187.43 : x
  2. Step 2: Convert to fraction form
    1,072,132.07/1,479,253.89 = 636,187.43/x
  3. Step 3: Cross multiply
    1,072,132.07x = 1,479,253.89 × 636,187.43
  4. Step 4: Simplify right side
    1,072,132.07x = 941,082,736,680.44
  5. Step 5: Solve for x
    x = 941,082,736,680.44/1,072,132.07
  6. Step 6: Final answer
    x = 877,767.55

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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.