Home / 1,221,149.14-1,822,829.12-1,131,099.01

Finding the Fourth Proportional to 1,221,149.14, 1,822,829.12 and 1,131,099.01

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Solution

The fourth proportional to 1,221,149.14, 1,822,829.12 and 1,131,099.01 is: 1,688,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,149.14 : 1,822,829.12 = 1,131,099.01 : x
  2. Step 2: Convert to fraction form
    1,221,149.14/1,822,829.12 = 1,131,099.01/x
  3. Step 3: Cross multiply
    1,221,149.14x = 1,822,829.12 × 1,131,099.01
  4. Step 4: Simplify right side
    1,221,149.14x = 2,061,800,213,031.17
  5. Step 5: Solve for x
    x = 2,061,800,213,031.17/1,221,149.14
  6. Step 6: Final answer
    x = 1,688,409.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.