Home / 398,823.84-597,736.82-199,199.94

Finding the Fourth Proportional to 398,823.84, 597,736.82 and 199,199.94

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Solution

The fourth proportional to 398,823.84, 597,736.82 and 199,199.94 is: 298,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,823.84 : 597,736.82 = 199,199.94 : x
  2. Step 2: Convert to fraction form
    398,823.84/597,736.82 = 199,199.94/x
  3. Step 3: Cross multiply
    398,823.84x = 597,736.82 × 199,199.94
  4. Step 4: Simplify right side
    398,823.84x = 119,069,137,683.79
  5. Step 5: Solve for x
    x = 119,069,137,683.79/398,823.84
  6. Step 6: Final answer
    x = 298,550.70

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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.