Home / 667,799.80-1,001,019.30-330,321.40

Finding the Fourth Proportional to 667,799.80, 1,001,019.30 and 330,321.40

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Solution

The fourth proportional to 667,799.80, 1,001,019.30 and 330,321.40 is: 495,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,799.80 : 1,001,019.30 = 330,321.40 : x
  2. Step 2: Convert to fraction form
    667,799.80/1,001,019.30 = 330,321.40/x
  3. Step 3: Cross multiply
    667,799.80x = 1,001,019.30 × 330,321.40
  4. Step 4: Simplify right side
    667,799.80x = 330,658,096,603.02
  5. Step 5: Solve for x
    x = 330,658,096,603.02/667,799.80
  6. Step 6: Final answer
    x = 495,145.55

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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.