Home / 419,347.28-628,724.40-134,949.84

Finding the Fourth Proportional to 419,347.28, 628,724.40 and 134,949.84

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Solution

The fourth proportional to 419,347.28, 628,724.40 and 134,949.84 is: 202,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,347.28 : 628,724.40 = 134,949.84 : x
  2. Step 2: Convert to fraction form
    419,347.28/628,724.40 = 134,949.84/x
  3. Step 3: Cross multiply
    419,347.28x = 628,724.40 × 134,949.84
  4. Step 4: Simplify right side
    419,347.28x = 84,846,257,184.10
  5. Step 5: Solve for x
    x = 84,846,257,184.10/419,347.28
  6. Step 6: Final answer
    x = 202,329.34

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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.