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Finding the Fourth Proportional to 610,605.49, 842,736.47 and 338,760.97

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Solution

The fourth proportional to 610,605.49, 842,736.47 and 338,760.97 is: 467,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,605.49 : 842,736.47 = 338,760.97 : x
  2. Step 2: Convert to fraction form
    610,605.49/842,736.47 = 338,760.97/x
  3. Step 3: Cross multiply
    610,605.49x = 842,736.47 × 338,760.97
  4. Step 4: Simplify right side
    610,605.49x = 285,486,218,970.99
  5. Step 5: Solve for x
    x = 285,486,218,970.99/610,605.49
  6. Step 6: Final answer
    x = 467,546.11

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1.5x scale

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.