Home / 3,217,126.68-4,825,686.92-820,971.32

Finding the Fourth Proportional to 3,217,126.68, 4,825,686.92 and 820,971.32

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Solution

The fourth proportional to 3,217,126.68, 4,825,686.92 and 820,971.32 is: 1,231,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,126.68 : 4,825,686.92 = 820,971.32 : x
  2. Step 2: Convert to fraction form
    3,217,126.68/4,825,686.92 = 820,971.32/x
  3. Step 3: Cross multiply
    3,217,126.68x = 4,825,686.92 × 820,971.32
  4. Step 4: Simplify right side
    3,217,126.68x = 3,961,750,532,385.84
  5. Step 5: Solve for x
    x = 3,961,750,532,385.84/3,217,126.68
  6. Step 6: Final answer
    x = 1,231,456.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.