Home / 880,523.52-1,320,785.28-319,557.12

Finding the Fourth Proportional to 880,523.52, 1,320,785.28 and 319,557.12

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Solution

The fourth proportional to 880,523.52, 1,320,785.28 and 319,557.12 is: 479,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,523.52 : 1,320,785.28 = 319,557.12 : x
  2. Step 2: Convert to fraction form
    880,523.52/1,320,785.28 = 319,557.12/x
  3. Step 3: Cross multiply
    880,523.52x = 1,320,785.28 × 319,557.12
  4. Step 4: Simplify right side
    880,523.52x = 422,066,340,215.19
  5. Step 5: Solve for x
    x = 422,066,340,215.19/880,523.52
  6. Step 6: Final answer
    x = 479,335.68

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Double scale
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Similar ratio
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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.