Home / 815,696.79-1,222,287.66-436,667.82

Finding the Fourth Proportional to 815,696.79, 1,222,287.66 and 436,667.82

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Solution

The fourth proportional to 815,696.79, 1,222,287.66 and 436,667.82 is: 654,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,696.79 : 1,222,287.66 = 436,667.82 : x
  2. Step 2: Convert to fraction form
    815,696.79/1,222,287.66 = 436,667.82/x
  3. Step 3: Cross multiply
    815,696.79x = 1,222,287.66 × 436,667.82
  4. Step 4: Simplify right side
    815,696.79x = 533,733,687,905.10
  5. Step 5: Solve for x
    x = 533,733,687,905.10/815,696.79
  6. Step 6: Final answer
    x = 654,328.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.