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Finding the Fourth Proportional to 805,163.52, 1,207,943 and 400,546.64

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Solution

The fourth proportional to 805,163.52, 1,207,943 and 400,546.64 is: 600,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,163.52 : 1,207,943 = 400,546.64 : x
  2. Step 2: Convert to fraction form
    805,163.52/1,207,943 = 400,546.64/x
  3. Step 3: Cross multiply
    805,163.52x = 1,207,943 × 400,546.64
  4. Step 4: Simplify right side
    805,163.52x = 483,837,509,961.52
  5. Step 5: Solve for x
    x = 483,837,509,961.52/805,163.52
  6. Step 6: Final answer
    x = 600,918.32

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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.