Home / 1,218,007.85-1,680,854.15-674,181.14

Finding the Fourth Proportional to 1,218,007.85, 1,680,854.15 and 674,181.14

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Solution

The fourth proportional to 1,218,007.85, 1,680,854.15 and 674,181.14 is: 930,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,007.85 : 1,680,854.15 = 674,181.14 : x
  2. Step 2: Convert to fraction form
    1,218,007.85/1,680,854.15 = 674,181.14/x
  3. Step 3: Cross multiply
    1,218,007.85x = 1,680,854.15 × 674,181.14
  4. Step 4: Simplify right side
    1,218,007.85x = 1,133,200,160,301.91
  5. Step 5: Solve for x
    x = 1,133,200,160,301.91/1,218,007.85
  6. Step 6: Final answer
    x = 930,371.81

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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.