Home / 1,218,542.13-1,681,640.63-674,677.88

Finding the Fourth Proportional to 1,218,542.13, 1,681,640.63 and 674,677.88

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Solution

The fourth proportional to 1,218,542.13, 1,681,640.63 and 674,677.88 is: 931,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,542.13 : 1,681,640.63 = 674,677.88 : x
  2. Step 2: Convert to fraction form
    1,218,542.13/1,681,640.63 = 674,677.88/x
  3. Step 3: Cross multiply
    1,218,542.13x = 1,681,640.63 × 674,677.88
  4. Step 4: Simplify right side
    1,218,542.13x = 1,134,565,745,479.16
  5. Step 5: Solve for x
    x = 1,134,565,745,479.16/1,218,542.13
  6. Step 6: Final answer
    x = 931,084.55

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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.