Home / 1,105,647.40-1,660,220.70-839,708.20

Finding the Fourth Proportional to 1,105,647.40, 1,660,220.70 and 839,708.20

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Solution

The fourth proportional to 1,105,647.40, 1,660,220.70 and 839,708.20 is: 1,260,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,647.40 : 1,660,220.70 = 839,708.20 : x
  2. Step 2: Convert to fraction form
    1,105,647.40/1,660,220.70 = 839,708.20/x
  3. Step 3: Cross multiply
    1,105,647.40x = 1,660,220.70 × 839,708.20
  4. Step 4: Simplify right side
    1,105,647.40x = 1,394,100,935,599.74
  5. Step 5: Solve for x
    x = 1,394,100,935,599.74/1,105,647.40
  6. Step 6: Final answer
    x = 1,260,891.07

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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.