Home / 1,028,857.60-1,543,286.40-319,103.20

Finding the Fourth Proportional to 1,028,857.60, 1,543,286.40 and 319,103.20

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Solution

The fourth proportional to 1,028,857.60, 1,543,286.40 and 319,103.20 is: 478,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,857.60 : 1,543,286.40 = 319,103.20 : x
  2. Step 2: Convert to fraction form
    1,028,857.60/1,543,286.40 = 319,103.20/x
  3. Step 3: Cross multiply
    1,028,857.60x = 1,543,286.40 × 319,103.20
  4. Step 4: Simplify right side
    1,028,857.60x = 492,467,628,756.48
  5. Step 5: Solve for x
    x = 492,467,628,756.48/1,028,857.60
  6. Step 6: Final answer
    x = 478,654.80

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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.