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Finding the Fourth Proportional to 866,284.32, 1,299,032.88 and 267,133.92

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Solution

The fourth proportional to 866,284.32, 1,299,032.88 and 267,133.92 is: 400,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,284.32 : 1,299,032.88 = 267,133.92 : x
  2. Step 2: Convert to fraction form
    866,284.32/1,299,032.88 = 267,133.92/x
  3. Step 3: Cross multiply
    866,284.32x = 1,299,032.88 × 267,133.92
  4. Step 4: Simplify right side
    866,284.32x = 347,015,745,443.29
  5. Step 5: Solve for x
    x = 347,015,745,443.29/866,284.32
  6. Step 6: Final answer
    x = 400,579.51

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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.