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Finding the Fourth Proportional to 399,634.54, 598,935.08 and 299,005.20

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Solution

The fourth proportional to 399,634.54, 598,935.08 and 299,005.20 is: 448,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,634.54 : 598,935.08 = 299,005.20 : x
  2. Step 2: Convert to fraction form
    399,634.54/598,935.08 = 299,005.20/x
  3. Step 3: Cross multiply
    399,634.54x = 598,935.08 × 299,005.20
  4. Step 4: Simplify right side
    399,634.54x = 179,084,704,129.93
  5. Step 5: Solve for x
    x = 179,084,704,129.93/399,634.54
  6. Step 6: Final answer
    x = 448,121.19

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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.