Home / 408,837.51-613,282.23-128,365.83

Finding the Fourth Proportional to 408,837.51, 613,282.23 and 128,365.83

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Solution

The fourth proportional to 408,837.51, 613,282.23 and 128,365.83 is: 192,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,837.51 : 613,282.23 = 128,365.83 : x
  2. Step 2: Convert to fraction form
    408,837.51/613,282.23 = 128,365.83/x
  3. Step 3: Cross multiply
    408,837.51x = 613,282.23 × 128,365.83
  4. Step 4: Simplify right side
    408,837.51x = 78,724,482,478.20
  5. Step 5: Solve for x
    x = 78,724,482,478.20/408,837.51
  6. Step 6: Final answer
    x = 192,556.90

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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.