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Finding the Fourth Proportional to 886,561.10, 1,330,676.85 and 466,138.70

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Solution

The fourth proportional to 886,561.10, 1,330,676.85 and 466,138.70 is: 699,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,561.10 : 1,330,676.85 = 466,138.70 : x
  2. Step 2: Convert to fraction form
    886,561.10/1,330,676.85 = 466,138.70/x
  3. Step 3: Cross multiply
    886,561.10x = 1,330,676.85 × 466,138.70
  4. Step 4: Simplify right side
    886,561.10x = 620,279,976,979.10
  5. Step 5: Solve for x
    x = 620,279,976,979.10/886,561.10
  6. Step 6: Final answer
    x = 699,647.18

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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.