Home / 2,780,485.60-4,170,728.40-887,418.40

Finding the Fourth Proportional to 2,780,485.60, 4,170,728.40 and 887,418.40

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Solution

The fourth proportional to 2,780,485.60, 4,170,728.40 and 887,418.40 is: 1,331,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,485.60 : 4,170,728.40 = 887,418.40 : x
  2. Step 2: Convert to fraction form
    2,780,485.60/4,170,728.40 = 887,418.40/x
  3. Step 3: Cross multiply
    2,780,485.60x = 4,170,728.40 × 887,418.40
  4. Step 4: Simplify right side
    2,780,485.60x = 3,701,181,123,562.56
  5. Step 5: Solve for x
    x = 3,701,181,123,562.56/2,780,485.60
  6. Step 6: Final answer
    x = 1,331,127.60

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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.