Home / 722,477.89-997,052.32-400,187.95

Finding the Fourth Proportional to 722,477.89, 997,052.32 and 400,187.95

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Solution

The fourth proportional to 722,477.89, 997,052.32 and 400,187.95 is: 552,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,477.89 : 997,052.32 = 400,187.95 : x
  2. Step 2: Convert to fraction form
    722,477.89/997,052.32 = 400,187.95/x
  3. Step 3: Cross multiply
    722,477.89x = 997,052.32 × 400,187.95
  4. Step 4: Simplify right side
    722,477.89x = 399,008,323,983.54
  5. Step 5: Solve for x
    x = 399,008,323,983.54/722,477.89
  6. Step 6: Final answer
    x = 552,277.56

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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.