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Finding the Fourth Proportional to 536,380.79, 740,077.89 and 303,809.72

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Solution

The fourth proportional to 536,380.79, 740,077.89 and 303,809.72 is: 419,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,380.79 : 740,077.89 = 303,809.72 : x
  2. Step 2: Convert to fraction form
    536,380.79/740,077.89 = 303,809.72/x
  3. Step 3: Cross multiply
    536,380.79x = 740,077.89 × 303,809.72
  4. Step 4: Simplify right side
    536,380.79x = 224,842,856,539.09
  5. Step 5: Solve for x
    x = 224,842,856,539.09/536,380.79
  6. Step 6: Final answer
    x = 419,185.14

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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.