Home / 918,067.67-1,377,100.44-319,028.88

Finding the Fourth Proportional to 918,067.67, 1,377,100.44 and 319,028.88

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Solution

The fourth proportional to 918,067.67, 1,377,100.44 and 319,028.88 is: 478,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,067.67 : 1,377,100.44 = 319,028.88 : x
  2. Step 2: Convert to fraction form
    918,067.67/1,377,100.44 = 319,028.88/x
  3. Step 3: Cross multiply
    918,067.67x = 1,377,100.44 × 319,028.88
  4. Step 4: Simplify right side
    918,067.67x = 439,334,808,438.64
  5. Step 5: Solve for x
    x = 439,334,808,438.64/918,067.67
  6. Step 6: Final answer
    x = 478,542.95

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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.