Home / 1,420,742.59-2,131,954.85-522,815.06

Finding the Fourth Proportional to 1,420,742.59, 2,131,954.85 and 522,815.06

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Solution

The fourth proportional to 1,420,742.59, 2,131,954.85 and 522,815.06 is: 784,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,742.59 : 2,131,954.85 = 522,815.06 : x
  2. Step 2: Convert to fraction form
    1,420,742.59/2,131,954.85 = 522,815.06/x
  3. Step 3: Cross multiply
    1,420,742.59x = 2,131,954.85 × 522,815.06
  4. Step 4: Simplify right side
    1,420,742.59x = 1,114,618,102,820.04
  5. Step 5: Solve for x
    x = 1,114,618,102,820.04/1,420,742.59
  6. Step 6: Final answer
    x = 784,532.05

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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.