Home / 781,297.88-1,172,063.82-282,778.52

Finding the Fourth Proportional to 781,297.88, 1,172,063.82 and 282,778.52

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Solution

The fourth proportional to 781,297.88, 1,172,063.82 and 282,778.52 is: 424,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,297.88 : 1,172,063.82 = 282,778.52 : x
  2. Step 2: Convert to fraction form
    781,297.88/1,172,063.82 = 282,778.52/x
  3. Step 3: Cross multiply
    781,297.88x = 1,172,063.82 × 282,778.52
  4. Step 4: Simplify right side
    781,297.88x = 331,434,472,365.15
  5. Step 5: Solve for x
    x = 331,434,472,365.15/781,297.88
  6. Step 6: Final answer
    x = 424,210.13

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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.