Home / 409,268.39-613,951.79-209,535.14

Finding the Fourth Proportional to 409,268.39, 613,951.79 and 209,535.14

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Solution

The fourth proportional to 409,268.39, 613,951.79 and 209,535.14 is: 314,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,268.39 : 613,951.79 = 209,535.14 : x
  2. Step 2: Convert to fraction form
    409,268.39/613,951.79 = 209,535.14/x
  3. Step 3: Cross multiply
    409,268.39x = 613,951.79 × 209,535.14
  4. Step 4: Simplify right side
    409,268.39x = 128,644,474,758.10
  5. Step 5: Solve for x
    x = 128,644,474,758.10/409,268.39
  6. Step 6: Final answer
    x = 314,327.91

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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.