Home / 1,200,217.68-1,656,717.48-691,122.96

Finding the Fourth Proportional to 1,200,217.68, 1,656,717.48 and 691,122.96

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Solution

The fourth proportional to 1,200,217.68, 1,656,717.48 and 691,122.96 is: 953,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,217.68 : 1,656,717.48 = 691,122.96 : x
  2. Step 2: Convert to fraction form
    1,200,217.68/1,656,717.48 = 691,122.96/x
  3. Step 3: Cross multiply
    1,200,217.68x = 1,656,717.48 × 691,122.96
  4. Step 4: Simplify right side
    1,200,217.68x = 1,144,995,488,661.34
  5. Step 5: Solve for x
    x = 1,144,995,488,661.34/1,200,217.68
  6. Step 6: Final answer
    x = 953,989.85

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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.