Home / 1,229,655.38-1,696,882.56-678,393.06

Finding the Fourth Proportional to 1,229,655.38, 1,696,882.56 and 678,393.06

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Solution

The fourth proportional to 1,229,655.38, 1,696,882.56 and 678,393.06 is: 936,159.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,655.38 : 1,696,882.56 = 678,393.06 : x
  2. Step 2: Convert to fraction form
    1,229,655.38/1,696,882.56 = 678,393.06/x
  3. Step 3: Cross multiply
    1,229,655.38x = 1,696,882.56 × 678,393.06
  4. Step 4: Simplify right side
    1,229,655.38x = 1,151,153,352,339.03
  5. Step 5: Solve for x
    x = 1,151,153,352,339.03/1,229,655.38
  6. Step 6: Final answer
    x = 936,159.33

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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.