Home / 422,330.11-632,022.51-345,541.19

Finding the Fourth Proportional to 422,330.11, 632,022.51 and 345,541.19

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Solution

The fourth proportional to 422,330.11, 632,022.51 and 345,541.19 is: 517,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,330.11 : 632,022.51 = 345,541.19 : x
  2. Step 2: Convert to fraction form
    422,330.11/632,022.51 = 345,541.19/x
  3. Step 3: Cross multiply
    422,330.11x = 632,022.51 × 345,541.19
  4. Step 4: Simplify right side
    422,330.11x = 218,389,810,212.19
  5. Step 5: Solve for x
    x = 218,389,810,212.19/422,330.11
  6. Step 6: Final answer
    x = 517,106.89

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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.