Home / 668,660.04-1,002,954.81-219,321.75

Finding the Fourth Proportional to 668,660.04, 1,002,954.81 and 219,321.75

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Solution

The fourth proportional to 668,660.04, 1,002,954.81 and 219,321.75 is: 328,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,660.04 : 1,002,954.81 = 219,321.75 : x
  2. Step 2: Convert to fraction form
    668,660.04/1,002,954.81 = 219,321.75/x
  3. Step 3: Cross multiply
    668,660.04x = 1,002,954.81 × 219,321.75
  4. Step 4: Simplify right side
    668,660.04x = 219,969,804,100.12
  5. Step 5: Solve for x
    x = 219,969,804,100.12/668,660.04
  6. Step 6: Final answer
    x = 328,971.06

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Similar ratio
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1.5x scale

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.