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Finding the Fourth Proportional to 866,786.84, 1,300,242.78 and 267,670.49

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Solution

The fourth proportional to 866,786.84, 1,300,242.78 and 267,670.49 is: 401,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,786.84 : 1,300,242.78 = 267,670.49 : x
  2. Step 2: Convert to fraction form
    866,786.84/1,300,242.78 = 267,670.49/x
  3. Step 3: Cross multiply
    866,786.84x = 1,300,242.78 × 267,670.49
  4. Step 4: Simplify right side
    866,786.84x = 348,036,615,540.35
  5. Step 5: Solve for x
    x = 348,036,615,540.35/866,786.84
  6. Step 6: Final answer
    x = 401,525.04

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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.