Home / 418,975.43-628,521.47-134,674.75

Finding the Fourth Proportional to 418,975.43, 628,521.47 and 134,674.75

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Solution

The fourth proportional to 418,975.43, 628,521.47 and 134,674.75 is: 202,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,975.43 : 628,521.47 = 134,674.75 : x
  2. Step 2: Convert to fraction form
    418,975.43/628,521.47 = 134,674.75/x
  3. Step 3: Cross multiply
    418,975.43x = 628,521.47 × 134,674.75
  4. Step 4: Simplify right side
    418,975.43x = 84,645,968,025.90
  5. Step 5: Solve for x
    x = 84,645,968,025.90/418,975.43
  6. Step 6: Final answer
    x = 202,030.86

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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.