Home / 661,275.18-991,982.07-282,236.22

Finding the Fourth Proportional to 661,275.18, 991,982.07 and 282,236.22

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Solution

The fourth proportional to 661,275.18, 991,982.07 and 282,236.22 is: 423,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,275.18 : 991,982.07 = 282,236.22 : x
  2. Step 2: Convert to fraction form
    661,275.18/991,982.07 = 282,236.22/x
  3. Step 3: Cross multiply
    661,275.18x = 991,982.07 × 282,236.22
  4. Step 4: Simplify right side
    661,275.18x = 279,973,269,744.58
  5. Step 5: Solve for x
    x = 279,973,269,744.58/661,275.18
  6. Step 6: Final answer
    x = 423,383.91

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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.