Home / 447,052.80-670,579.20-329,246.40

Finding the Fourth Proportional to 447,052.80, 670,579.20 and 329,246.40

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Solution

The fourth proportional to 447,052.80, 670,579.20 and 329,246.40 is: 493,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,052.80 : 670,579.20 = 329,246.40 : x
  2. Step 2: Convert to fraction form
    447,052.80/670,579.20 = 329,246.40/x
  3. Step 3: Cross multiply
    447,052.80x = 670,579.20 × 329,246.40
  4. Step 4: Simplify right side
    447,052.80x = 220,785,787,514.88
  5. Step 5: Solve for x
    x = 220,785,787,514.88/447,052.80
  6. Step 6: Final answer
    x = 493,869.60

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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.