Home / 1,217,903.40-1,680,665.13-674,062.20

Finding the Fourth Proportional to 1,217,903.40, 1,680,665.13 and 674,062.20

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Solution

The fourth proportional to 1,217,903.40, 1,680,665.13 and 674,062.20 is: 930,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,903.40 : 1,680,665.13 = 674,062.20 : x
  2. Step 2: Convert to fraction form
    1,217,903.40/1,680,665.13 = 674,062.20/x
  3. Step 3: Cross multiply
    1,217,903.40x = 1,680,665.13 × 674,062.20
  4. Step 4: Simplify right side
    1,217,903.40x = 1,132,872,834,991.09
  5. Step 5: Solve for x
    x = 1,132,872,834,991.09/1,217,903.40
  6. Step 6: Final answer
    x = 930,182.83

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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.