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Finding the Fourth Proportional to 867,002.40, 1,300,600.80 and 267,958.80

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Solution

The fourth proportional to 867,002.40, 1,300,600.80 and 267,958.80 is: 401,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,002.40 : 1,300,600.80 = 267,958.80 : x
  2. Step 2: Convert to fraction form
    867,002.40/1,300,600.80 = 267,958.80/x
  3. Step 3: Cross multiply
    867,002.40x = 1,300,600.80 × 267,958.80
  4. Step 4: Simplify right side
    867,002.40x = 348,507,429,647.04
  5. Step 5: Solve for x
    x = 348,507,429,647.04/867,002.40
  6. Step 6: Final answer
    x = 401,968.24

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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.