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Finding the Fourth Proportional to 648,028.72, 894,324.54 and 361,604.62

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Solution

The fourth proportional to 648,028.72, 894,324.54 and 361,604.62 is: 499,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,028.72 : 894,324.54 = 361,604.62 : x
  2. Step 2: Convert to fraction form
    648,028.72/894,324.54 = 361,604.62/x
  3. Step 3: Cross multiply
    648,028.72x = 894,324.54 × 361,604.62
  4. Step 4: Simplify right side
    648,028.72x = 323,391,885,443.38
  5. Step 5: Solve for x
    x = 323,391,885,443.38/648,028.72
  6. Step 6: Final answer
    x = 499,039.43

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1.5x scale

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.