Home / 418,930.70-578,136.69-227,956.46

Finding the Fourth Proportional to 418,930.70, 578,136.69 and 227,956.46

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Solution

The fourth proportional to 418,930.70, 578,136.69 and 227,956.46 is: 314,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,930.70 : 578,136.69 = 227,956.46 : x
  2. Step 2: Convert to fraction form
    418,930.70/578,136.69 = 227,956.46/x
  3. Step 3: Cross multiply
    418,930.70x = 578,136.69 × 227,956.46
  4. Step 4: Simplify right side
    418,930.70x = 131,789,990,357.83
  5. Step 5: Solve for x
    x = 131,789,990,357.83/418,930.70
  6. Step 6: Final answer
    x = 314,586.62

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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.