Home / 981,350.10-1,471,152.78-382,172.85

Finding the Fourth Proportional to 981,350.10, 1,471,152.78 and 382,172.85

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Solution

The fourth proportional to 981,350.10, 1,471,152.78 and 382,172.85 is: 572,919.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,350.10 : 1,471,152.78 = 382,172.85 : x
  2. Step 2: Convert to fraction form
    981,350.10/1,471,152.78 = 382,172.85/x
  3. Step 3: Cross multiply
    981,350.10x = 1,471,152.78 × 382,172.85
  4. Step 4: Simplify right side
    981,350.10x = 562,234,650,718.02
  5. Step 5: Solve for x
    x = 562,234,650,718.02/981,350.10
  6. Step 6: Final answer
    x = 572,919.54

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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.