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Finding the Fourth Proportional to 521,958.71, 720,353.58 and 292,554.97

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Solution

The fourth proportional to 521,958.71, 720,353.58 and 292,554.97 is: 403,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,958.71 : 720,353.58 = 292,554.97 : x
  2. Step 2: Convert to fraction form
    521,958.71/720,353.58 = 292,554.97/x
  3. Step 3: Cross multiply
    521,958.71x = 720,353.58 × 292,554.97
  4. Step 4: Simplify right side
    521,958.71x = 210,743,019,986.29
  5. Step 5: Solve for x
    x = 210,743,019,986.29/521,958.71
  6. Step 6: Final answer
    x = 403,754.20

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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.