Home / 479,036.27-661,047.82-274,943.55

Finding the Fourth Proportional to 479,036.27, 661,047.82 and 274,943.55

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Solution

The fourth proportional to 479,036.27, 661,047.82 and 274,943.55 is: 379,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,036.27 : 661,047.82 = 274,943.55 : x
  2. Step 2: Convert to fraction form
    479,036.27/661,047.82 = 274,943.55/x
  3. Step 3: Cross multiply
    479,036.27x = 661,047.82 × 274,943.55
  4. Step 4: Simplify right side
    479,036.27x = 181,750,836,142.13
  5. Step 5: Solve for x
    x = 181,750,836,142.13/479,036.27
  6. Step 6: Final answer
    x = 379,409.34

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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.