Home / 800,781.08-1,105,077.97-438,205.01

Finding the Fourth Proportional to 800,781.08, 1,105,077.97 and 438,205.01

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Solution

The fourth proportional to 800,781.08, 1,105,077.97 and 438,205.01 is: 604,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,781.08 : 1,105,077.97 = 438,205.01 : x
  2. Step 2: Convert to fraction form
    800,781.08/1,105,077.97 = 438,205.01/x
  3. Step 3: Cross multiply
    800,781.08x = 1,105,077.97 × 438,205.01
  4. Step 4: Simplify right side
    800,781.08x = 484,250,702,894.63
  5. Step 5: Solve for x
    x = 484,250,702,894.63/800,781.08
  6. Step 6: Final answer
    x = 604,722.96

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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.