Home / 864,885.22-1,297,451.87-265,896.68

Finding the Fourth Proportional to 864,885.22, 1,297,451.87 and 265,896.68

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Solution

The fourth proportional to 864,885.22, 1,297,451.87 and 265,896.68 is: 398,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,885.22 : 1,297,451.87 = 265,896.68 : x
  2. Step 2: Convert to fraction form
    864,885.22/1,297,451.87 = 265,896.68/x
  3. Step 3: Cross multiply
    864,885.22x = 1,297,451.87 × 265,896.68
  4. Step 4: Simplify right side
    864,885.22x = 344,988,138,870.27
  5. Step 5: Solve for x
    x = 344,988,138,870.27/864,885.22
  6. Step 6: Final answer
    x = 398,883.15

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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.