Home / 399,130.35-598,870.82-209,546.66

Finding the Fourth Proportional to 399,130.35, 598,870.82 and 209,546.66

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Solution

The fourth proportional to 399,130.35, 598,870.82 and 209,546.66 is: 314,412.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,130.35 : 598,870.82 = 209,546.66 : x
  2. Step 2: Convert to fraction form
    399,130.35/598,870.82 = 209,546.66/x
  3. Step 3: Cross multiply
    399,130.35x = 598,870.82 × 209,546.66
  4. Step 4: Simplify right side
    399,130.35x = 125,491,380,102.46
  5. Step 5: Solve for x
    x = 125,491,380,102.46/399,130.35
  6. Step 6: Final answer
    x = 314,412.02

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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.