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Finding the Fourth Proportional to 626,992.88, 865,260.17 and 340,512.95

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Solution

The fourth proportional to 626,992.88, 865,260.17 and 340,512.95 is: 469,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,992.88 : 865,260.17 = 340,512.95 : x
  2. Step 2: Convert to fraction form
    626,992.88/865,260.17 = 340,512.95/x
  3. Step 3: Cross multiply
    626,992.88x = 865,260.17 × 340,512.95
  4. Step 4: Simplify right side
    626,992.88x = 294,632,286,975.34
  5. Step 5: Solve for x
    x = 294,632,286,975.34/626,992.88
  6. Step 6: Final answer
    x = 469,913.29

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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.