Home / 418,727.28-628,076.07-119,209.44

Finding the Fourth Proportional to 418,727.28, 628,076.07 and 119,209.44

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Solution

The fourth proportional to 418,727.28, 628,076.07 and 119,209.44 is: 178,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,727.28 : 628,076.07 = 119,209.44 : x
  2. Step 2: Convert to fraction form
    418,727.28/628,076.07 = 119,209.44/x
  3. Step 3: Cross multiply
    418,727.28x = 628,076.07 × 119,209.44
  4. Step 4: Simplify right side
    418,727.28x = 74,872,596,582.10
  5. Step 5: Solve for x
    x = 74,872,596,582.10/418,727.28
  6. Step 6: Final answer
    x = 178,809.93

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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.