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Finding the Fourth Proportional to 499,409.22, 748,241.85 and 415,707.46

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Solution

The fourth proportional to 499,409.22, 748,241.85 and 415,707.46 is: 622,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,409.22 : 748,241.85 = 415,707.46 : x
  2. Step 2: Convert to fraction form
    499,409.22/748,241.85 = 415,707.46/x
  3. Step 3: Cross multiply
    499,409.22x = 748,241.85 × 415,707.46
  4. Step 4: Simplify right side
    499,409.22x = 311,049,718,929.20
  5. Step 5: Solve for x
    x = 311,049,718,929.20/499,409.22
  6. Step 6: Final answer
    x = 622,835.36

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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.