Home / 966,028.80-1,449,043.20-256,128.60

Finding the Fourth Proportional to 966,028.80, 1,449,043.20 and 256,128.60

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Solution

The fourth proportional to 966,028.80, 1,449,043.20 and 256,128.60 is: 384,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,028.80 : 1,449,043.20 = 256,128.60 : x
  2. Step 2: Convert to fraction form
    966,028.80/1,449,043.20 = 256,128.60/x
  3. Step 3: Cross multiply
    966,028.80x = 1,449,043.20 × 256,128.60
  4. Step 4: Simplify right side
    966,028.80x = 371,141,406,155.52
  5. Step 5: Solve for x
    x = 371,141,406,155.52/966,028.80
  6. Step 6: Final answer
    x = 384,192.90

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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.