Home / 420,968.52-628,381.89-367,823.88

Finding the Fourth Proportional to 420,968.52, 628,381.89 and 367,823.88

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Solution

The fourth proportional to 420,968.52, 628,381.89 and 367,823.88 is: 549,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,968.52 : 628,381.89 = 367,823.88 : x
  2. Step 2: Convert to fraction form
    420,968.52/628,381.89 = 367,823.88/x
  3. Step 3: Cross multiply
    420,968.52x = 628,381.89 × 367,823.88
  4. Step 4: Simplify right side
    420,968.52x = 231,133,864,901.53
  5. Step 5: Solve for x
    x = 231,133,864,901.53/420,968.52
  6. Step 6: Final answer
    x = 549,052.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.