Home / 2,800,897.20-4,200,361.65-1,285,306.20

Finding the Fourth Proportional to 2,800,897.20, 4,200,361.65 and 1,285,306.20

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Solution

The fourth proportional to 2,800,897.20, 4,200,361.65 and 1,285,306.20 is: 1,927,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,897.20 : 4,200,361.65 = 1,285,306.20 : x
  2. Step 2: Convert to fraction form
    2,800,897.20/4,200,361.65 = 1,285,306.20/x
  3. Step 3: Cross multiply
    2,800,897.20x = 4,200,361.65 × 1,285,306.20
  4. Step 4: Simplify right side
    2,800,897.20x = 5,398,750,870,987.23
  5. Step 5: Solve for x
    x = 5,398,750,870,987.23/2,800,897.20
  6. Step 6: Final answer
    x = 1,927,507.68

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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.