Home / 2,988,000.80-4,482,001.20-744,138.80

Finding the Fourth Proportional to 2,988,000.80, 4,482,001.20 and 744,138.80

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Solution

The fourth proportional to 2,988,000.80, 4,482,001.20 and 744,138.80 is: 1,116,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,000.80 : 4,482,001.20 = 744,138.80 : x
  2. Step 2: Convert to fraction form
    2,988,000.80/4,482,001.20 = 744,138.80/x
  3. Step 3: Cross multiply
    2,988,000.80x = 4,482,001.20 × 744,138.80
  4. Step 4: Simplify right side
    2,988,000.80x = 3,335,230,994,566.56
  5. Step 5: Solve for x
    x = 3,335,230,994,566.56/2,988,000.80
  6. Step 6: Final answer
    x = 1,116,208.20

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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.