Home / 638,915.80-958,488.46-218,093.26

Finding the Fourth Proportional to 638,915.80, 958,488.46 and 218,093.26

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Solution

The fourth proportional to 638,915.80, 958,488.46 and 218,093.26 is: 327,179.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,915.80 : 958,488.46 = 218,093.26 : x
  2. Step 2: Convert to fraction form
    638,915.80/958,488.46 = 218,093.26/x
  3. Step 3: Cross multiply
    638,915.80x = 958,488.46 × 218,093.26
  4. Step 4: Simplify right side
    638,915.80x = 209,039,872,913.78
  5. Step 5: Solve for x
    x = 209,039,872,913.78/638,915.80
  6. Step 6: Final answer
    x = 327,179.06

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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.