Home / 781,130.22-1,077,908.79-436,906.54

Finding the Fourth Proportional to 781,130.22, 1,077,908.79 and 436,906.54

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Solution

The fourth proportional to 781,130.22, 1,077,908.79 and 436,906.54 is: 602,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,130.22 : 1,077,908.79 = 436,906.54 : x
  2. Step 2: Convert to fraction form
    781,130.22/1,077,908.79 = 436,906.54/x
  3. Step 3: Cross multiply
    781,130.22x = 1,077,908.79 × 436,906.54
  4. Step 4: Simplify right side
    781,130.22x = 470,945,399,874.49
  5. Step 5: Solve for x
    x = 470,945,399,874.49/781,130.22
  6. Step 6: Final answer
    x = 602,902.55

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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.