Home / 1,217,901.90-1,680,663.06-674,060.70

Finding the Fourth Proportional to 1,217,901.90, 1,680,663.06 and 674,060.70

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Solution

The fourth proportional to 1,217,901.90, 1,680,663.06 and 674,060.70 is: 930,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,901.90 : 1,680,663.06 = 674,060.70 : x
  2. Step 2: Convert to fraction form
    1,217,901.90/1,680,663.06 = 674,060.70/x
  3. Step 3: Cross multiply
    1,217,901.90x = 1,680,663.06 × 674,060.70
  4. Step 4: Simplify right side
    1,217,901.90x = 1,132,868,918,687.74
  5. Step 5: Solve for x
    x = 1,132,868,918,687.74/1,217,901.90
  6. Step 6: Final answer
    x = 930,180.76

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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.