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Finding the Fourth Proportional to 618,013.92, 852,966 and 349,741.92

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Solution

The fourth proportional to 618,013.92, 852,966 and 349,741.92 is: 482,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,013.92 : 852,966 = 349,741.92 : x
  2. Step 2: Convert to fraction form
    618,013.92/852,966 = 349,741.92/x
  3. Step 3: Cross multiply
    618,013.92x = 852,966 × 349,741.92
  4. Step 4: Simplify right side
    618,013.92x = 298,317,966,534.72
  5. Step 5: Solve for x
    x = 298,317,966,534.72/618,013.92
  6. Step 6: Final answer
    x = 482,704.28

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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.