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Finding the Fourth Proportional to 538,677.87, 743,383.70 and 293,662.79

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Solution

The fourth proportional to 538,677.87, 743,383.70 and 293,662.79 is: 405,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,677.87 : 743,383.70 = 293,662.79 : x
  2. Step 2: Convert to fraction form
    538,677.87/743,383.70 = 293,662.79/x
  3. Step 3: Cross multiply
    538,677.87x = 743,383.70 × 293,662.79
  4. Step 4: Simplify right side
    538,677.87x = 218,304,133,002.91
  5. Step 5: Solve for x
    x = 218,304,133,002.91/538,677.87
  6. Step 6: Final answer
    x = 405,259.15

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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.