Home / 547,861.78-756,034.70-306,146.33

Finding the Fourth Proportional to 547,861.78, 756,034.70 and 306,146.33

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Solution

The fourth proportional to 547,861.78, 756,034.70 and 306,146.33 is: 422,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,861.78 : 756,034.70 = 306,146.33 : x
  2. Step 2: Convert to fraction form
    547,861.78/756,034.70 = 306,146.33/x
  3. Step 3: Cross multiply
    547,861.78x = 756,034.70 × 306,146.33
  4. Step 4: Simplify right side
    547,861.78x = 231,457,248,757.65
  5. Step 5: Solve for x
    x = 231,457,248,757.65/547,861.78
  6. Step 6: Final answer
    x = 422,473.80

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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.