Home / 815,696.66-1,222,287.46-436,667.70

Finding the Fourth Proportional to 815,696.66, 1,222,287.46 and 436,667.70

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Solution

The fourth proportional to 815,696.66, 1,222,287.46 and 436,667.70 is: 654,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,696.66 : 1,222,287.46 = 436,667.70 : x
  2. Step 2: Convert to fraction form
    815,696.66/1,222,287.46 = 436,667.70/x
  3. Step 3: Cross multiply
    815,696.66x = 1,222,287.46 × 436,667.70
  4. Step 4: Simplify right side
    815,696.66x = 533,733,453,897.04
  5. Step 5: Solve for x
    x = 533,733,453,897.04/815,696.66
  6. Step 6: Final answer
    x = 654,328.36

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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.