Home / 1,208,220.30-1,667,350.04-664,391.16

Finding the Fourth Proportional to 1,208,220.30, 1,667,350.04 and 664,391.16

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Solution

The fourth proportional to 1,208,220.30, 1,667,350.04 and 664,391.16 is: 916,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,220.30 : 1,667,350.04 = 664,391.16 : x
  2. Step 2: Convert to fraction form
    1,208,220.30/1,667,350.04 = 664,391.16/x
  3. Step 3: Cross multiply
    1,208,220.30x = 1,667,350.04 × 664,391.16
  4. Step 4: Simplify right side
    1,208,220.30x = 1,107,772,623,879.69
  5. Step 5: Solve for x
    x = 1,107,772,623,879.69/1,208,220.30
  6. Step 6: Final answer
    x = 916,863.11

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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.