Home / 1,107,010.20-1,660,515.30-839,321.40

Finding the Fourth Proportional to 1,107,010.20, 1,660,515.30 and 839,321.40

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Solution

The fourth proportional to 1,107,010.20, 1,660,515.30 and 839,321.40 is: 1,258,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,010.20 : 1,660,515.30 = 839,321.40 : x
  2. Step 2: Convert to fraction form
    1,107,010.20/1,660,515.30 = 839,321.40/x
  3. Step 3: Cross multiply
    1,107,010.20x = 1,660,515.30 × 839,321.40
  4. Step 4: Simplify right side
    1,107,010.20x = 1,393,706,026,317.42
  5. Step 5: Solve for x
    x = 1,393,706,026,317.42/1,107,010.20
  6. Step 6: Final answer
    x = 1,258,982.10

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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.