Home / 1,218,165.30-1,681,047.76-674,289.42

Finding the Fourth Proportional to 1,218,165.30, 1,681,047.76 and 674,289.42

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Solution

The fourth proportional to 1,218,165.30, 1,681,047.76 and 674,289.42 is: 930,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,165.30 : 1,681,047.76 = 674,289.42 : x
  2. Step 2: Convert to fraction form
    1,218,165.30/1,681,047.76 = 674,289.42/x
  3. Step 3: Cross multiply
    1,218,165.30x = 1,681,047.76 × 674,289.42
  4. Step 4: Simplify right side
    1,218,165.30x = 1,133,512,719,082.70
  5. Step 5: Solve for x
    x = 1,133,512,719,082.70/1,218,165.30
  6. Step 6: Final answer
    x = 930,508.13

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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.