Home / 858,850.20-1,288,275.30-297,884.70

Finding the Fourth Proportional to 858,850.20, 1,288,275.30 and 297,884.70

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Solution

The fourth proportional to 858,850.20, 1,288,275.30 and 297,884.70 is: 446,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,850.20 : 1,288,275.30 = 297,884.70 : x
  2. Step 2: Convert to fraction form
    858,850.20/1,288,275.30 = 297,884.70/x
  3. Step 3: Cross multiply
    858,850.20x = 1,288,275.30 × 297,884.70
  4. Step 4: Simplify right side
    858,850.20x = 383,757,501,257.91
  5. Step 5: Solve for x
    x = 383,757,501,257.91/858,850.20
  6. Step 6: Final answer
    x = 446,827.05

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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.