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Finding the Fourth Proportional to 871,615.08, 1,304,610.30 and 450,311.40

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Solution

The fourth proportional to 871,615.08, 1,304,610.30 and 450,311.40 is: 674,014.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,615.08 : 1,304,610.30 = 450,311.40 : x
  2. Step 2: Convert to fraction form
    871,615.08/1,304,610.30 = 450,311.40/x
  3. Step 3: Cross multiply
    871,615.08x = 1,304,610.30 × 450,311.40
  4. Step 4: Simplify right side
    871,615.08x = 587,480,890,647.42
  5. Step 5: Solve for x
    x = 587,480,890,647.42/871,615.08
  6. Step 6: Final answer
    x = 674,014.14

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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.