Home / 3,517,812.60-5,276,718.90-1,121,638.20

Finding the Fourth Proportional to 3,517,812.60, 5,276,718.90 and 1,121,638.20

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Solution

The fourth proportional to 3,517,812.60, 5,276,718.90 and 1,121,638.20 is: 1,682,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517,812.60 : 5,276,718.90 = 1,121,638.20 : x
  2. Step 2: Convert to fraction form
    3,517,812.60/5,276,718.90 = 1,121,638.20/x
  3. Step 3: Cross multiply
    3,517,812.60x = 5,276,718.90 × 1,121,638.20
  4. Step 4: Simplify right side
    3,517,812.60x = 5,918,569,488,901.98
  5. Step 5: Solve for x
    x = 5,918,569,488,901.98/3,517,812.60
  6. Step 6: Final answer
    x = 1,682,457.30

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Similar ratio
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1.5x scale

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.