Home / 1,307,215.32-1,961,138.21-454,162.81

Finding the Fourth Proportional to 1,307,215.32, 1,961,138.21 and 454,162.81

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Solution

The fourth proportional to 1,307,215.32, 1,961,138.21 and 454,162.81 is: 681,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,215.32 : 1,961,138.21 = 454,162.81 : x
  2. Step 2: Convert to fraction form
    1,307,215.32/1,961,138.21 = 454,162.81/x
  3. Step 3: Cross multiply
    1,307,215.32x = 1,961,138.21 × 454,162.81
  4. Step 4: Simplify right side
    1,307,215.32x = 890,676,040,251.97
  5. Step 5: Solve for x
    x = 890,676,040,251.97/1,307,215.32
  6. Step 6: Final answer
    x = 681,353.73

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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.