Home / 1,207,996.16-1,667,035.77-664,141.21

Finding the Fourth Proportional to 1,207,996.16, 1,667,035.77 and 664,141.21

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Solution

The fourth proportional to 1,207,996.16, 1,667,035.77 and 664,141.21 is: 916,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,996.16 : 1,667,035.77 = 664,141.21 : x
  2. Step 2: Convert to fraction form
    1,207,996.16/1,667,035.77 = 664,141.21/x
  3. Step 3: Cross multiply
    1,207,996.16x = 1,667,035.77 × 664,141.21
  4. Step 4: Simplify right side
    1,207,996.16x = 1,107,147,145,065.90
  5. Step 5: Solve for x
    x = 1,107,147,145,065.90/1,207,996.16
  6. Step 6: Final answer
    x = 916,515.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.