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Finding the Fourth Proportional to 866,807.55, 1,300,349.84 and 267,627.87

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Solution

The fourth proportional to 866,807.55, 1,300,349.84 and 267,627.87 is: 401,484.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,807.55 : 1,300,349.84 = 267,627.87 : x
  2. Step 2: Convert to fraction form
    866,807.55/1,300,349.84 = 267,627.87/x
  3. Step 3: Cross multiply
    866,807.55x = 1,300,349.84 × 267,627.87
  4. Step 4: Simplify right side
    866,807.55x = 348,009,856,595.90
  5. Step 5: Solve for x
    x = 348,009,856,595.90/866,807.55
  6. Step 6: Final answer
    x = 401,484.57

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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.