Home / 2,688,995.20-4,028,577.60-2,187,644.80

Finding the Fourth Proportional to 2,688,995.20, 4,028,577.60 and 2,187,644.80

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Solution

The fourth proportional to 2,688,995.20, 4,028,577.60 and 2,187,644.80 is: 3,277,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,995.20 : 4,028,577.60 = 2,187,644.80 : x
  2. Step 2: Convert to fraction form
    2,688,995.20/4,028,577.60 = 2,187,644.80/x
  3. Step 3: Cross multiply
    2,688,995.20x = 4,028,577.60 × 2,187,644.80
  4. Step 4: Simplify right side
    2,688,995.20x = 8,813,096,838,036.48
  5. Step 5: Solve for x
    x = 8,813,096,838,036.48/2,688,995.20
  6. Step 6: Final answer
    x = 3,277,468.42

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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.