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Finding the Fourth Proportional to 866,756.40, 1,300,231.80 and 267,712.80

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Solution

The fourth proportional to 866,756.40, 1,300,231.80 and 267,712.80 is: 401,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,756.40 : 1,300,231.80 = 267,712.80 : x
  2. Step 2: Convert to fraction form
    866,756.40/1,300,231.80 = 267,712.80/x
  3. Step 3: Cross multiply
    866,756.40x = 1,300,231.80 × 267,712.80
  4. Step 4: Simplify right side
    866,756.40x = 348,088,695,827.04
  5. Step 5: Solve for x
    x = 348,088,695,827.04/866,756.40
  6. Step 6: Final answer
    x = 401,599.22

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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.