Home / 661,747.82-913,306.66-371,390.36

Finding the Fourth Proportional to 661,747.82, 913,306.66 and 371,390.36

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Solution

The fourth proportional to 661,747.82, 913,306.66 and 371,390.36 is: 512,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,747.82 : 913,306.66 = 371,390.36 : x
  2. Step 2: Convert to fraction form
    661,747.82/913,306.66 = 371,390.36/x
  3. Step 3: Cross multiply
    661,747.82x = 913,306.66 × 371,390.36
  4. Step 4: Simplify right side
    661,747.82x = 339,193,283,752.79
  5. Step 5: Solve for x
    x = 339,193,283,752.79/661,747.82
  6. Step 6: Final answer
    x = 512,571.82

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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.