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Finding the Fourth Proportional to 3,105,834.44, 4,658,750.22 and 861,971.72

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Solution

The fourth proportional to 3,105,834.44, 4,658,750.22 and 861,971.72 is: 1,292,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,834.44 : 4,658,750.22 = 861,971.72 : x
  2. Step 2: Convert to fraction form
    3,105,834.44/4,658,750.22 = 861,971.72/x
  3. Step 3: Cross multiply
    3,105,834.44x = 4,658,750.22 × 861,971.72
  4. Step 4: Simplify right side
    3,105,834.44x = 4,015,710,940,183.78
  5. Step 5: Solve for x
    x = 4,015,710,940,183.78/3,105,834.44
  6. Step 6: Final answer
    x = 1,292,957.18

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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.