Home / 659,664.81-989,792.46-379,182.06

Finding the Fourth Proportional to 659,664.81, 989,792.46 and 379,182.06

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Solution

The fourth proportional to 659,664.81, 989,792.46 and 379,182.06 is: 568,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,664.81 : 989,792.46 = 379,182.06 : x
  2. Step 2: Convert to fraction form
    659,664.81/989,792.46 = 379,182.06/x
  3. Step 3: Cross multiply
    659,664.81x = 989,792.46 × 379,182.06
  4. Step 4: Simplify right side
    659,664.81x = 375,311,543,955.27
  5. Step 5: Solve for x
    x = 375,311,543,955.27/659,664.81
  6. Step 6: Final answer
    x = 568,942.80

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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.