Home / 811,203.38-1,215,947-305,545.56

Finding the Fourth Proportional to 811,203.38, 1,215,947 and 305,545.56

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Solution

The fourth proportional to 811,203.38, 1,215,947 and 305,545.56 is: 457,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,203.38 : 1,215,947 = 305,545.56 : x
  2. Step 2: Convert to fraction form
    811,203.38/1,215,947 = 305,545.56/x
  3. Step 3: Cross multiply
    811,203.38x = 1,215,947 × 305,545.56
  4. Step 4: Simplify right side
    811,203.38x = 371,527,207,045.32
  5. Step 5: Solve for x
    x = 371,527,207,045.32/811,203.38
  6. Step 6: Final answer
    x = 457,995.14

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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.