Home / 465,174.47-642,010.19-283,991.43

Finding the Fourth Proportional to 465,174.47, 642,010.19 and 283,991.43

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Solution

The fourth proportional to 465,174.47, 642,010.19 and 283,991.43 is: 391,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,174.47 : 642,010.19 = 283,991.43 : x
  2. Step 2: Convert to fraction form
    465,174.47/642,010.19 = 283,991.43/x
  3. Step 3: Cross multiply
    465,174.47x = 642,010.19 × 283,991.43
  4. Step 4: Simplify right side
    465,174.47x = 182,325,387,302.66
  5. Step 5: Solve for x
    x = 182,325,387,302.66/465,174.47
  6. Step 6: Final answer
    x = 391,950.55

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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.