Home / 398,906.02-598,582.50-211,912.66

Finding the Fourth Proportional to 398,906.02, 598,582.50 and 211,912.66

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Solution

The fourth proportional to 398,906.02, 598,582.50 and 211,912.66 is: 317,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,906.02 : 598,582.50 = 211,912.66 : x
  2. Step 2: Convert to fraction form
    398,906.02/598,582.50 = 211,912.66/x
  3. Step 3: Cross multiply
    398,906.02x = 598,582.50 × 211,912.66
  4. Step 4: Simplify right side
    398,906.02x = 126,847,209,804.45
  5. Step 5: Solve for x
    x = 126,847,209,804.45/398,906.02
  6. Step 6: Final answer
    x = 317,987.70

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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.