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Finding the Fourth Proportional to 3,105,835.44, 4,658,751.72 and 861,972.72

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Solution

The fourth proportional to 3,105,835.44, 4,658,751.72 and 861,972.72 is: 1,292,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,835.44 : 4,658,751.72 = 861,972.72 : x
  2. Step 2: Convert to fraction form
    3,105,835.44/4,658,751.72 = 861,972.72/x
  3. Step 3: Cross multiply
    3,105,835.44x = 4,658,751.72 × 861,972.72
  4. Step 4: Simplify right side
    3,105,835.44x = 4,015,716,891,893.08
  5. Step 5: Solve for x
    x = 4,015,716,891,893.08/3,105,835.44
  6. Step 6: Final answer
    x = 1,292,958.68

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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.