Home / 1,294,423.66-1,786,312.92-721,500.13

Finding the Fourth Proportional to 1,294,423.66, 1,786,312.92 and 721,500.13

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Solution

The fourth proportional to 1,294,423.66, 1,786,312.92 and 721,500.13 is: 995,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,423.66 : 1,786,312.92 = 721,500.13 : x
  2. Step 2: Convert to fraction form
    1,294,423.66/1,786,312.92 = 721,500.13/x
  3. Step 3: Cross multiply
    1,294,423.66x = 1,786,312.92 × 721,500.13
  4. Step 4: Simplify right side
    1,294,423.66x = 1,288,825,004,000.68
  5. Step 5: Solve for x
    x = 1,288,825,004,000.68/1,294,423.66
  6. Step 6: Final answer
    x = 995,674.79

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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.