Home / 1,217,724.40-1,680,434.52-673,859.84

Finding the Fourth Proportional to 1,217,724.40, 1,680,434.52 and 673,859.84

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Solution

The fourth proportional to 1,217,724.40, 1,680,434.52 and 673,859.84 is: 929,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,724.40 : 1,680,434.52 = 673,859.84 : x
  2. Step 2: Convert to fraction form
    1,217,724.40/1,680,434.52 = 673,859.84/x
  3. Step 3: Cross multiply
    1,217,724.40x = 1,680,434.52 × 673,859.84
  4. Step 4: Simplify right side
    1,217,724.40x = 1,132,377,336,777.68
  5. Step 5: Solve for x
    x = 1,132,377,336,777.68/1,217,724.40
  6. Step 6: Final answer
    x = 929,912.66

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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.