Home / 762,279.80-1,143,791.48-313,135.61

Finding the Fourth Proportional to 762,279.80, 1,143,791.48 and 313,135.61

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Solution

The fourth proportional to 762,279.80, 1,143,791.48 and 313,135.61 is: 469,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,279.80 : 1,143,791.48 = 313,135.61 : x
  2. Step 2: Convert to fraction form
    762,279.80/1,143,791.48 = 313,135.61/x
  3. Step 3: Cross multiply
    762,279.80x = 1,143,791.48 × 313,135.61
  4. Step 4: Simplify right side
    762,279.80x = 358,161,837,866.48
  5. Step 5: Solve for x
    x = 358,161,837,866.48/762,279.80
  6. Step 6: Final answer
    x = 469,856.13

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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.