Home / 433,629.98-650,441.28-338,939.78

Finding the Fourth Proportional to 433,629.98, 650,441.28 and 338,939.78

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Solution

The fourth proportional to 433,629.98, 650,441.28 and 338,939.78 is: 508,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,629.98 : 650,441.28 = 338,939.78 : x
  2. Step 2: Convert to fraction form
    433,629.98/650,441.28 = 338,939.78/x
  3. Step 3: Cross multiply
    433,629.98x = 650,441.28 × 338,939.78
  4. Step 4: Simplify right side
    433,629.98x = 220,460,424,346.12
  5. Step 5: Solve for x
    x = 220,460,424,346.12/433,629.98
  6. Step 6: Final answer
    x = 508,406.79

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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.