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Finding the Fourth Proportional to 626,487.54, 864,552.45 and 354,550.50

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Solution

The fourth proportional to 626,487.54, 864,552.45 and 354,550.50 is: 489,279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,487.54 : 864,552.45 = 354,550.50 : x
  2. Step 2: Convert to fraction form
    626,487.54/864,552.45 = 354,550.50/x
  3. Step 3: Cross multiply
    626,487.54x = 864,552.45 × 354,550.50
  4. Step 4: Simplify right side
    626,487.54x = 306,527,503,423.73
  5. Step 5: Solve for x
    x = 306,527,503,423.73/626,487.54
  6. Step 6: Final answer
    x = 489,279.49

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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.