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Finding the Fourth Proportional to 611,634.75, 844,055.96 and 343,362.75

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Solution

The fourth proportional to 611,634.75, 844,055.96 and 343,362.75 is: 473,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,634.75 : 844,055.96 = 343,362.75 : x
  2. Step 2: Convert to fraction form
    611,634.75/844,055.96 = 343,362.75/x
  3. Step 3: Cross multiply
    611,634.75x = 844,055.96 × 343,362.75
  4. Step 4: Simplify right side
    611,634.75x = 289,817,375,579.49
  5. Step 5: Solve for x
    x = 289,817,375,579.49/611,634.75
  6. Step 6: Final answer
    x = 473,840.60

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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.