Home / 1,107,623.20-1,660,122.60-826,812.40

Finding the Fourth Proportional to 1,107,623.20, 1,660,122.60 and 826,812.40

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Solution

The fourth proportional to 1,107,623.20, 1,660,122.60 and 826,812.40 is: 1,239,239.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,623.20 : 1,660,122.60 = 826,812.40 : x
  2. Step 2: Convert to fraction form
    1,107,623.20/1,660,122.60 = 826,812.40/x
  3. Step 3: Cross multiply
    1,107,623.20x = 1,660,122.60 × 826,812.40
  4. Step 4: Simplify right side
    1,107,623.20x = 1,372,609,951,200.24
  5. Step 5: Solve for x
    x = 1,372,609,951,200.24/1,107,623.20
  6. Step 6: Final answer
    x = 1,239,239.08

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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.