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Finding the Fourth Proportional to 722,600.24, 997,115.66 and 400,250.11

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Solution

The fourth proportional to 722,600.24, 997,115.66 and 400,250.11 is: 552,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,600.24 : 997,115.66 = 400,250.11 : x
  2. Step 2: Convert to fraction form
    722,600.24/997,115.66 = 400,250.11/x
  3. Step 3: Cross multiply
    722,600.24x = 997,115.66 × 400,250.11
  4. Step 4: Simplify right side
    722,600.24x = 399,095,652,597.72
  5. Step 5: Solve for x
    x = 399,095,652,597.72/722,600.24
  6. Step 6: Final answer
    x = 552,304.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.