Home / 866,043.80-1,299,095.40-267,000.20

Finding the Fourth Proportional to 866,043.80, 1,299,095.40 and 267,000.20

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Solution

The fourth proportional to 866,043.80, 1,299,095.40 and 267,000.20 is: 400,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,043.80 : 1,299,095.40 = 267,000.20 : x
  2. Step 2: Convert to fraction form
    866,043.80/1,299,095.40 = 267,000.20/x
  3. Step 3: Cross multiply
    866,043.80x = 1,299,095.40 × 267,000.20
  4. Step 4: Simplify right side
    866,043.80x = 346,858,731,619.08
  5. Step 5: Solve for x
    x = 346,858,731,619.08/866,043.80
  6. Step 6: Final answer
    x = 400,509.46

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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.