Home / 1,987,941.60-2,981,912.40-1,358,085.60

Finding the Fourth Proportional to 1,987,941.60, 2,981,912.40 and 1,358,085.60

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Solution

The fourth proportional to 1,987,941.60, 2,981,912.40 and 1,358,085.60 is: 2,037,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,941.60 : 2,981,912.40 = 1,358,085.60 : x
  2. Step 2: Convert to fraction form
    1,987,941.60/2,981,912.40 = 1,358,085.60/x
  3. Step 3: Cross multiply
    1,987,941.60x = 2,981,912.40 × 1,358,085.60
  4. Step 4: Simplify right side
    1,987,941.60x = 4,049,692,290,901.44
  5. Step 5: Solve for x
    x = 4,049,692,290,901.44/1,987,941.60
  6. Step 6: Final answer
    x = 2,037,128.40

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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.