Home / 1,112,662.11-1,669,678.43-438,628.71

Finding the Fourth Proportional to 1,112,662.11, 1,669,678.43 and 438,628.71

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Solution

The fourth proportional to 1,112,662.11, 1,669,678.43 and 438,628.71 is: 658,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,662.11 : 1,669,678.43 = 438,628.71 : x
  2. Step 2: Convert to fraction form
    1,112,662.11/1,669,678.43 = 438,628.71/x
  3. Step 3: Cross multiply
    1,112,662.11x = 1,669,678.43 × 438,628.71
  4. Step 4: Simplify right side
    1,112,662.11x = 732,368,895,865.73
  5. Step 5: Solve for x
    x = 732,368,895,865.73/1,112,662.11
  6. Step 6: Final answer
    x = 658,213.21

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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.