Home / 445,275.72-668,242.08-327,265.20

Finding the Fourth Proportional to 445,275.72, 668,242.08 and 327,265.20

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Solution

The fourth proportional to 445,275.72, 668,242.08 and 327,265.20 is: 491,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,275.72 : 668,242.08 = 327,265.20 : x
  2. Step 2: Convert to fraction form
    445,275.72/668,242.08 = 327,265.20/x
  3. Step 3: Cross multiply
    445,275.72x = 668,242.08 × 327,265.20
  4. Step 4: Simplify right side
    445,275.72x = 218,692,377,959.62
  5. Step 5: Solve for x
    x = 218,692,377,959.62/445,275.72
  6. Step 6: Final answer
    x = 491,139.24

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1.5x scale

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.