Home / 667,977.30-1,002,219.75-401,921.46

Finding the Fourth Proportional to 667,977.30, 1,002,219.75 and 401,921.46

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Solution

The fourth proportional to 667,977.30, 1,002,219.75 and 401,921.46 is: 603,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,977.30 : 1,002,219.75 = 401,921.46 : x
  2. Step 2: Convert to fraction form
    667,977.30/1,002,219.75 = 401,921.46/x
  3. Step 3: Cross multiply
    667,977.30x = 1,002,219.75 × 401,921.46
  4. Step 4: Simplify right side
    667,977.30x = 402,813,625,160.84
  5. Step 5: Solve for x
    x = 402,813,625,160.84/667,977.30
  6. Step 6: Final answer
    x = 603,034.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.