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Finding the Fourth Proportional to 3,146,410.29, 4,719,601.97 and 871,928.20

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Solution

The fourth proportional to 3,146,410.29, 4,719,601.97 and 871,928.20 is: 1,307,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146,410.29 : 4,719,601.97 = 871,928.20 : x
  2. Step 2: Convert to fraction form
    3,146,410.29/4,719,601.97 = 871,928.20/x
  3. Step 3: Cross multiply
    3,146,410.29x = 4,719,601.97 × 871,928.20
  4. Step 4: Simplify right side
    3,146,410.29x = 4,115,154,050,418.55
  5. Step 5: Solve for x
    x = 4,115,154,050,418.55/3,146,410.29
  6. Step 6: Final answer
    x = 1,307,888.57

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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.