Home / 2,123,913.60-3,189,556.80-1,128,585.60

Finding the Fourth Proportional to 2,123,913.60, 3,189,556.80 and 1,128,585.60

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Solution

The fourth proportional to 2,123,913.60, 3,189,556.80 and 1,128,585.60 is: 1,694,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123,913.60 : 3,189,556.80 = 1,128,585.60 : x
  2. Step 2: Convert to fraction form
    2,123,913.60/3,189,556.80 = 1,128,585.60/x
  3. Step 3: Cross multiply
    2,123,913.60x = 3,189,556.80 × 1,128,585.60
  4. Step 4: Simplify right side
    2,123,913.60x = 3,599,687,874,862.08
  5. Step 5: Solve for x
    x = 3,599,687,874,862.08/2,123,913.60
  6. Step 6: Final answer
    x = 1,694,837.25

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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.