Home / 1,208,220.45-1,667,300.91-664,351.52

Finding the Fourth Proportional to 1,208,220.45, 1,667,300.91 and 664,351.52

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Solution

The fourth proportional to 1,208,220.45, 1,667,300.91 and 664,351.52 is: 916,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,220.45 : 1,667,300.91 = 664,351.52 : x
  2. Step 2: Convert to fraction form
    1,208,220.45/1,667,300.91 = 664,351.52/x
  3. Step 3: Cross multiply
    1,208,220.45x = 1,667,300.91 × 664,351.52
  4. Step 4: Simplify right side
    1,208,220.45x = 1,107,673,896,143.61
  5. Step 5: Solve for x
    x = 1,107,673,896,143.61/1,208,220.45
  6. Step 6: Final answer
    x = 916,781.28

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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.