Home / 399,723.90-598,601.70-189,115.80

Finding the Fourth Proportional to 399,723.90, 598,601.70 and 189,115.80

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Solution

The fourth proportional to 399,723.90, 598,601.70 and 189,115.80 is: 283,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,723.90 : 598,601.70 = 189,115.80 : x
  2. Step 2: Convert to fraction form
    399,723.90/598,601.70 = 189,115.80/x
  3. Step 3: Cross multiply
    399,723.90x = 598,601.70 × 189,115.80
  4. Step 4: Simplify right side
    399,723.90x = 113,205,039,376.86
  5. Step 5: Solve for x
    x = 113,205,039,376.86/399,723.90
  6. Step 6: Final answer
    x = 283,208.08

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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.