Home / 3,152,379.20-4,728,568.80-1,891,630.40

Finding the Fourth Proportional to 3,152,379.20, 4,728,568.80 and 1,891,630.40

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Solution

The fourth proportional to 3,152,379.20, 4,728,568.80 and 1,891,630.40 is: 2,837,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152,379.20 : 4,728,568.80 = 1,891,630.40 : x
  2. Step 2: Convert to fraction form
    3,152,379.20/4,728,568.80 = 1,891,630.40/x
  3. Step 3: Cross multiply
    3,152,379.20x = 4,728,568.80 × 1,891,630.40
  4. Step 4: Simplify right side
    3,152,379.20x = 8,944,704,490,571.52
  5. Step 5: Solve for x
    x = 8,944,704,490,571.52/3,152,379.20
  6. Step 6: Final answer
    x = 2,837,445.60

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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.