Home / 679,711.97-1,019,568.03-323,646.50

Finding the Fourth Proportional to 679,711.97, 1,019,568.03 and 323,646.50

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Solution

The fourth proportional to 679,711.97, 1,019,568.03 and 323,646.50 is: 485,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,711.97 : 1,019,568.03 = 323,646.50 : x
  2. Step 2: Convert to fraction form
    679,711.97/1,019,568.03 = 323,646.50/x
  3. Step 3: Cross multiply
    679,711.97x = 1,019,568.03 × 323,646.50
  4. Step 4: Simplify right side
    679,711.97x = 329,979,624,421.40
  5. Step 5: Solve for x
    x = 329,979,624,421.40/679,711.97
  6. Step 6: Final answer
    x = 485,469.79

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Double scale
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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.