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Finding the Fourth Proportional to 637,616.25, 879,897.06 and 351,138.69

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Solution

The fourth proportional to 637,616.25, 879,897.06 and 351,138.69 is: 484,564.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,616.25 : 879,897.06 = 351,138.69 : x
  2. Step 2: Convert to fraction form
    637,616.25/879,897.06 = 351,138.69/x
  3. Step 3: Cross multiply
    637,616.25x = 879,897.06 × 351,138.69
  4. Step 4: Simplify right side
    637,616.25x = 308,965,900,983.25
  5. Step 5: Solve for x
    x = 308,965,900,983.25/637,616.25
  6. Step 6: Final answer
    x = 484,564.03

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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.