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Finding the Fourth Proportional to 520,637.28, 780,273.36 and 296,100.96

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Solution

The fourth proportional to 520,637.28, 780,273.36 and 296,100.96 is: 443,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,637.28 : 780,273.36 = 296,100.96 : x
  2. Step 2: Convert to fraction form
    520,637.28/780,273.36 = 296,100.96/x
  3. Step 3: Cross multiply
    520,637.28x = 780,273.36 × 296,100.96
  4. Step 4: Simplify right side
    520,637.28x = 231,039,690,958.43
  5. Step 5: Solve for x
    x = 231,039,690,958.43/520,637.28
  6. Step 6: Final answer
    x = 443,763.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.