Home / 1,294,550.22-1,786,502.81-721,528.88

Finding the Fourth Proportional to 1,294,550.22, 1,786,502.81 and 721,528.88

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Solution

The fourth proportional to 1,294,550.22, 1,786,502.81 and 721,528.88 is: 995,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,550.22 : 1,786,502.81 = 721,528.88 : x
  2. Step 2: Convert to fraction form
    1,294,550.22/1,786,502.81 = 721,528.88/x
  3. Step 3: Cross multiply
    1,294,550.22x = 1,786,502.81 × 721,528.88
  4. Step 4: Simplify right side
    1,294,550.22x = 1,289,013,359,075.99
  5. Step 5: Solve for x
    x = 1,289,013,359,075.99/1,294,550.22
  6. Step 6: Final answer
    x = 995,722.95

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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.