Home / 479,047.97-661,077.25-261,259.23

Finding the Fourth Proportional to 479,047.97, 661,077.25 and 261,259.23

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Solution

The fourth proportional to 479,047.97, 661,077.25 and 261,259.23 is: 360,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,047.97 : 661,077.25 = 261,259.23 : x
  2. Step 2: Convert to fraction form
    479,047.97/661,077.25 = 261,259.23/x
  3. Step 3: Cross multiply
    479,047.97x = 661,077.25 × 261,259.23
  4. Step 4: Simplify right side
    479,047.97x = 172,712,531,999.22
  5. Step 5: Solve for x
    x = 172,712,531,999.22/479,047.97
  6. Step 6: Final answer
    x = 360,532.85

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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.