Home / 3,428,615.60-5,142,923.40-2,872,890.80

Finding the Fourth Proportional to 3,428,615.60, 5,142,923.40 and 2,872,890.80

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Solution

The fourth proportional to 3,428,615.60, 5,142,923.40 and 2,872,890.80 is: 4,309,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,615.60 : 5,142,923.40 = 2,872,890.80 : x
  2. Step 2: Convert to fraction form
    3,428,615.60/5,142,923.40 = 2,872,890.80/x
  3. Step 3: Cross multiply
    3,428,615.60x = 5,142,923.40 × 2,872,890.80
  4. Step 4: Simplify right side
    3,428,615.60x = 14,775,057,320,964.72
  5. Step 5: Solve for x
    x = 14,775,057,320,964.72/3,428,615.60
  6. Step 6: Final answer
    x = 4,309,336.20

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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.