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Finding the Fourth Proportional to 866,268.96, 1,299,543.60 and 267,090

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Solution

The fourth proportional to 866,268.96, 1,299,543.60 and 267,090 is: 400,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,268.96 : 1,299,543.60 = 267,090 : x
  2. Step 2: Convert to fraction form
    866,268.96/1,299,543.60 = 267,090/x
  3. Step 3: Cross multiply
    866,268.96x = 1,299,543.60 × 267,090
  4. Step 4: Simplify right side
    866,268.96x = 347,095,100,124
  5. Step 5: Solve for x
    x = 347,095,100,124/866,268.96
  6. Step 6: Final answer
    x = 400,678.21

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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.