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Finding the Fourth Proportional to 505,458.44, 697,812.82 and 344,549.92

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Solution

The fourth proportional to 505,458.44, 697,812.82 and 344,549.92 is: 475,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,458.44 : 697,812.82 = 344,549.92 : x
  2. Step 2: Convert to fraction form
    505,458.44/697,812.82 = 344,549.92/x
  3. Step 3: Cross multiply
    505,458.44x = 697,812.82 × 344,549.92
  4. Step 4: Simplify right side
    505,458.44x = 240,431,351,305.97
  5. Step 5: Solve for x
    x = 240,431,351,305.97/505,458.44
  6. Step 6: Final answer
    x = 475,669.87

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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.