Home / 666,864.43-999,491.06-324,795.15

Finding the Fourth Proportional to 666,864.43, 999,491.06 and 324,795.15

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Solution

The fourth proportional to 666,864.43, 999,491.06 and 324,795.15 is: 486,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,864.43 : 999,491.06 = 324,795.15 : x
  2. Step 2: Convert to fraction form
    666,864.43/999,491.06 = 324,795.15/x
  3. Step 3: Cross multiply
    666,864.43x = 999,491.06 × 324,795.15
  4. Step 4: Simplify right side
    666,864.43x = 324,629,849,568.35
  5. Step 5: Solve for x
    x = 324,629,849,568.35/666,864.43
  6. Step 6: Final answer
    x = 486,800.37

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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.