Home / 1,265,824.81-1,746,849.11-721,988.13

Finding the Fourth Proportional to 1,265,824.81, 1,746,849.11 and 721,988.13

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Solution

The fourth proportional to 1,265,824.81, 1,746,849.11 and 721,988.13 is: 996,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,824.81 : 1,746,849.11 = 721,988.13 : x
  2. Step 2: Convert to fraction form
    1,265,824.81/1,746,849.11 = 721,988.13/x
  3. Step 3: Cross multiply
    1,265,824.81x = 1,746,849.11 × 721,988.13
  4. Step 4: Simplify right side
    1,265,824.81x = 1,261,204,318,711.12
  5. Step 5: Solve for x
    x = 1,261,204,318,711.12/1,265,824.81
  6. Step 6: Final answer
    x = 996,349.82

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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.