Home / 1,102,685.40-1,654,028.10-682,781.40

Finding the Fourth Proportional to 1,102,685.40, 1,654,028.10 and 682,781.40

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Solution

The fourth proportional to 1,102,685.40, 1,654,028.10 and 682,781.40 is: 1,024,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,685.40 : 1,654,028.10 = 682,781.40 : x
  2. Step 2: Convert to fraction form
    1,102,685.40/1,654,028.10 = 682,781.40/x
  3. Step 3: Cross multiply
    1,102,685.40x = 1,654,028.10 × 682,781.40
  4. Step 4: Simplify right side
    1,102,685.40x = 1,129,339,621,757.34
  5. Step 5: Solve for x
    x = 1,129,339,621,757.34/1,102,685.40
  6. Step 6: Final answer
    x = 1,024,172.10

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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.