Home / 394,362.14-543,582.18-308,171.34

Finding the Fourth Proportional to 394,362.14, 543,582.18 and 308,171.34

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Solution

The fourth proportional to 394,362.14, 543,582.18 and 308,171.34 is: 424,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,362.14 : 543,582.18 = 308,171.34 : x
  2. Step 2: Convert to fraction form
    394,362.14/543,582.18 = 308,171.34/x
  3. Step 3: Cross multiply
    394,362.14x = 543,582.18 × 308,171.34
  4. Step 4: Simplify right side
    394,362.14x = 167,516,448,810.72
  5. Step 5: Solve for x
    x = 167,516,448,810.72/394,362.14
  6. Step 6: Final answer
    x = 424,778.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.