Home / 1,182,785.46-1,632,242.61-638,921.12

Finding the Fourth Proportional to 1,182,785.46, 1,632,242.61 and 638,921.12

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Solution

The fourth proportional to 1,182,785.46, 1,632,242.61 and 638,921.12 is: 881,710.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,785.46 : 1,632,242.61 = 638,921.12 : x
  2. Step 2: Convert to fraction form
    1,182,785.46/1,632,242.61 = 638,921.12/x
  3. Step 3: Cross multiply
    1,182,785.46x = 1,632,242.61 × 638,921.12
  4. Step 4: Simplify right side
    1,182,785.46x = 1,042,874,268,331.71
  5. Step 5: Solve for x
    x = 1,042,874,268,331.71/1,182,785.46
  6. Step 6: Final answer
    x = 881,710.43

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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.