Home / 418,905.59-578,072.44-227,919.74

Finding the Fourth Proportional to 418,905.59, 578,072.44 and 227,919.74

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Solution

The fourth proportional to 418,905.59, 578,072.44 and 227,919.74 is: 314,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,905.59 : 578,072.44 = 227,919.74 : x
  2. Step 2: Convert to fraction form
    418,905.59/578,072.44 = 227,919.74/x
  3. Step 3: Cross multiply
    418,905.59x = 578,072.44 × 227,919.74
  4. Step 4: Simplify right side
    418,905.59x = 131,754,120,225.97
  5. Step 5: Solve for x
    x = 131,754,120,225.97/418,905.59
  6. Step 6: Final answer
    x = 314,519.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.