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Finding the Fourth Proportional to 722,493.47, 997,040.95 and 400,224.44

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Solution

The fourth proportional to 722,493.47, 997,040.95 and 400,224.44 is: 552,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,493.47 : 997,040.95 = 400,224.44 : x
  2. Step 2: Convert to fraction form
    722,493.47/997,040.95 = 400,224.44/x
  3. Step 3: Cross multiply
    722,493.47x = 997,040.95 × 400,224.44
  4. Step 4: Simplify right side
    722,493.47x = 399,040,157,362.86
  5. Step 5: Solve for x
    x = 399,040,157,362.86/722,493.47
  6. Step 6: Final answer
    x = 552,309.71

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1.5x scale

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.