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Finding the Fourth Proportional to 961,723.72, 1,442,716.82 and 400,627

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Solution

The fourth proportional to 961,723.72, 1,442,716.82 and 400,627 is: 600,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,723.72 : 1,442,716.82 = 400,627 : x
  2. Step 2: Convert to fraction form
    961,723.72/1,442,716.82 = 400,627/x
  3. Step 3: Cross multiply
    961,723.72x = 1,442,716.82 × 400,627
  4. Step 4: Simplify right side
    961,723.72x = 577,991,311,446.14
  5. Step 5: Solve for x
    x = 577,991,311,446.14/961,723.72
  6. Step 6: Final answer
    x = 600,995.17

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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.