Home / 709,149.28-1,063,715.76-203,722.72

Finding the Fourth Proportional to 709,149.28, 1,063,715.76 and 203,722.72

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Solution

The fourth proportional to 709,149.28, 1,063,715.76 and 203,722.72 is: 305,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,149.28 : 1,063,715.76 = 203,722.72 : x
  2. Step 2: Convert to fraction form
    709,149.28/1,063,715.76 = 203,722.72/x
  3. Step 3: Cross multiply
    709,149.28x = 1,063,715.76 × 203,722.72
  4. Step 4: Simplify right side
    709,149.28x = 216,703,067,934.07
  5. Step 5: Solve for x
    x = 216,703,067,934.07/709,149.28
  6. Step 6: Final answer
    x = 305,581.74

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1.5x scale

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.