Home / 387,783.39-582,220.04-198,379.62

Finding the Fourth Proportional to 387,783.39, 582,220.04 and 198,379.62

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Solution

The fourth proportional to 387,783.39, 582,220.04 and 198,379.62 is: 297,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,783.39 : 582,220.04 = 198,379.62 : x
  2. Step 2: Convert to fraction form
    387,783.39/582,220.04 = 198,379.62/x
  3. Step 3: Cross multiply
    387,783.39x = 582,220.04 × 198,379.62
  4. Step 4: Simplify right side
    387,783.39x = 115,500,589,299.69
  5. Step 5: Solve for x
    x = 115,500,589,299.69/387,783.39
  6. Step 6: Final answer
    x = 297,848.21

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1.5x scale

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.