Home / 871,200.56-1,304,002.40-465,378.11

Finding the Fourth Proportional to 871,200.56, 1,304,002.40 and 465,378.11

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Solution

The fourth proportional to 871,200.56, 1,304,002.40 and 465,378.11 is: 696,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,200.56 : 1,304,002.40 = 465,378.11 : x
  2. Step 2: Convert to fraction form
    871,200.56/1,304,002.40 = 465,378.11/x
  3. Step 3: Cross multiply
    871,200.56x = 1,304,002.40 × 465,378.11
  4. Step 4: Simplify right side
    871,200.56x = 606,854,168,390.57
  5. Step 5: Solve for x
    x = 606,854,168,390.57/871,200.56
  6. Step 6: Final answer
    x = 696,572.29

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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.