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Finding the Fourth Proportional to 606,399.84, 909,693.32 and 206,947.12

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Solution

The fourth proportional to 606,399.84, 909,693.32 and 206,947.12 is: 310,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,399.84 : 909,693.32 = 206,947.12 : x
  2. Step 2: Convert to fraction form
    606,399.84/909,693.32 = 206,947.12/x
  3. Step 3: Cross multiply
    606,399.84x = 909,693.32 × 206,947.12
  4. Step 4: Simplify right side
    606,399.84x = 188,258,412,657.24
  5. Step 5: Solve for x
    x = 188,258,412,657.24/606,399.84
  6. Step 6: Final answer
    x = 310,452.61

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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.