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Finding the Fourth Proportional to 677,278.80, 1,015,885.80 and 227,955.60

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Solution

The fourth proportional to 677,278.80, 1,015,885.80 and 227,955.60 is: 341,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,278.80 : 1,015,885.80 = 227,955.60 : x
  2. Step 2: Convert to fraction form
    677,278.80/1,015,885.80 = 227,955.60/x
  3. Step 3: Cross multiply
    677,278.80x = 1,015,885.80 × 227,955.60
  4. Step 4: Simplify right side
    677,278.80x = 231,576,857,070.48
  5. Step 5: Solve for x
    x = 231,576,857,070.48/677,278.80
  6. Step 6: Final answer
    x = 341,922.49

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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.