Home / 493,545.20-681,138.34-299,908.22

Finding the Fourth Proportional to 493,545.20, 681,138.34 and 299,908.22

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Solution

The fourth proportional to 493,545.20, 681,138.34 and 299,908.22 is: 413,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,545.20 : 681,138.34 = 299,908.22 : x
  2. Step 2: Convert to fraction form
    493,545.20/681,138.34 = 299,908.22/x
  3. Step 3: Cross multiply
    493,545.20x = 681,138.34 × 299,908.22
  4. Step 4: Simplify right side
    493,545.20x = 204,278,987,642.59
  5. Step 5: Solve for x
    x = 204,278,987,642.59/493,545.20
  6. Step 6: Final answer
    x = 413,901.27

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1.5x scale

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.