Home / 1,107,209.70-1,659,927.60-1,018,636.20

Finding the Fourth Proportional to 1,107,209.70, 1,659,927.60 and 1,018,636.20

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Solution

The fourth proportional to 1,107,209.70, 1,659,927.60 and 1,018,636.20 is: 1,527,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,209.70 : 1,659,927.60 = 1,018,636.20 : x
  2. Step 2: Convert to fraction form
    1,107,209.70/1,659,927.60 = 1,018,636.20/x
  3. Step 3: Cross multiply
    1,107,209.70x = 1,659,927.60 × 1,018,636.20
  4. Step 4: Simplify right side
    1,107,209.70x = 1,690,862,342,739.12
  5. Step 5: Solve for x
    x = 1,690,862,342,739.12/1,107,209.70
  6. Step 6: Final answer
    x = 1,527,138.30

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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.