Home / 1,208,836.22-1,668,197.81-665,013.35

Finding the Fourth Proportional to 1,208,836.22, 1,668,197.81 and 665,013.35

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Solution

The fourth proportional to 1,208,836.22, 1,668,197.81 and 665,013.35 is: 917,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,836.22 : 1,668,197.81 = 665,013.35 : x
  2. Step 2: Convert to fraction form
    1,208,836.22/1,668,197.81 = 665,013.35/x
  3. Step 3: Cross multiply
    1,208,836.22x = 1,668,197.81 × 665,013.35
  4. Step 4: Simplify right side
    1,208,836.22x = 1,109,373,819,923.79
  5. Step 5: Solve for x
    x = 1,109,373,819,923.79/1,208,836.22
  6. Step 6: Final answer
    x = 917,720.54

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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.