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Finding the Fourth Proportional to 722,892.24, 997,597.08 and 400,607.69

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Solution

The fourth proportional to 722,892.24, 997,597.08 and 400,607.69 is: 552,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,892.24 : 997,597.08 = 400,607.69 : x
  2. Step 2: Convert to fraction form
    722,892.24/997,597.08 = 400,607.69/x
  3. Step 3: Cross multiply
    722,892.24x = 997,597.08 × 400,607.69
  4. Step 4: Simplify right side
    722,892.24x = 399,645,056,781.56
  5. Step 5: Solve for x
    x = 399,645,056,781.56/722,892.24
  6. Step 6: Final answer
    x = 552,841.81

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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.