Home / 1,946,515.20-2,917,785.60-1,315,492.80

Finding the Fourth Proportional to 1,946,515.20, 2,917,785.60 and 1,315,492.80

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Solution

The fourth proportional to 1,946,515.20, 2,917,785.60 and 1,315,492.80 is: 1,971,896.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946,515.20 : 2,917,785.60 = 1,315,492.80 : x
  2. Step 2: Convert to fraction form
    1,946,515.20/2,917,785.60 = 1,315,492.80/x
  3. Step 3: Cross multiply
    1,946,515.20x = 2,917,785.60 × 1,315,492.80
  4. Step 4: Simplify right side
    1,946,515.20x = 3,838,325,948,743.68
  5. Step 5: Solve for x
    x = 3,838,325,948,743.68/1,946,515.20
  6. Step 6: Final answer
    x = 1,971,896.21

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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.