Home / 3,155,620.78-4,734,218.49-911,758.78

Finding the Fourth Proportional to 3,155,620.78, 4,734,218.49 and 911,758.78

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Solution

The fourth proportional to 3,155,620.78, 4,734,218.49 and 911,758.78 is: 1,367,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155,620.78 : 4,734,218.49 = 911,758.78 : x
  2. Step 2: Convert to fraction form
    3,155,620.78/4,734,218.49 = 911,758.78/x
  3. Step 3: Cross multiply
    3,155,620.78x = 4,734,218.49 × 911,758.78
  4. Step 4: Simplify right side
    3,155,620.78x = 4,316,465,282,323.16
  5. Step 5: Solve for x
    x = 4,316,465,282,323.16/3,155,620.78
  6. Step 6: Final answer
    x = 1,367,865.65

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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.