Home / 3,280,663.20-4,920,994.80-916,759.20

Finding the Fourth Proportional to 3,280,663.20, 4,920,994.80 and 916,759.20

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Solution

The fourth proportional to 3,280,663.20, 4,920,994.80 and 916,759.20 is: 1,375,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,663.20 : 4,920,994.80 = 916,759.20 : x
  2. Step 2: Convert to fraction form
    3,280,663.20/4,920,994.80 = 916,759.20/x
  3. Step 3: Cross multiply
    3,280,663.20x = 4,920,994.80 × 916,759.20
  4. Step 4: Simplify right side
    3,280,663.20x = 4,511,367,256,052.16
  5. Step 5: Solve for x
    x = 4,511,367,256,052.16/3,280,663.20
  6. Step 6: Final answer
    x = 1,375,138.80

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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.