Home / 726,455.70-1,002,515.01-404,202.90

Finding the Fourth Proportional to 726,455.70, 1,002,515.01 and 404,202.90

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Solution

The fourth proportional to 726,455.70, 1,002,515.01 and 404,202.90 is: 557,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,455.70 : 1,002,515.01 = 404,202.90 : x
  2. Step 2: Convert to fraction form
    726,455.70/1,002,515.01 = 404,202.90/x
  3. Step 3: Cross multiply
    726,455.70x = 1,002,515.01 × 404,202.90
  4. Step 4: Simplify right side
    726,455.70x = 405,219,474,335.53
  5. Step 5: Solve for x
    x = 405,219,474,335.53/726,455.70
  6. Step 6: Final answer
    x = 557,803.42

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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.