Home / 722,974.23-997,677.27-400,689.81

Finding the Fourth Proportional to 722,974.23, 997,677.27 and 400,689.81

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Solution

The fourth proportional to 722,974.23, 997,677.27 and 400,689.81 is: 552,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,974.23 : 997,677.27 = 400,689.81 : x
  2. Step 2: Convert to fraction form
    722,974.23/997,677.27 = 400,689.81/x
  3. Step 3: Cross multiply
    722,974.23x = 997,677.27 × 400,689.81
  4. Step 4: Simplify right side
    722,974.23x = 399,759,115,757.62
  5. Step 5: Solve for x
    x = 399,759,115,757.62/722,974.23
  6. Step 6: Final answer
    x = 552,936.88

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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.