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Finding the Fourth Proportional to 415,195.52, 622,989.84 and 247,048.16

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Solution

The fourth proportional to 415,195.52, 622,989.84 and 247,048.16 is: 370,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,195.52 : 622,989.84 = 247,048.16 : x
  2. Step 2: Convert to fraction form
    415,195.52/622,989.84 = 247,048.16/x
  3. Step 3: Cross multiply
    415,195.52x = 622,989.84 × 247,048.16
  4. Step 4: Simplify right side
    415,195.52x = 153,908,493,670.69
  5. Step 5: Solve for x
    x = 153,908,493,670.69/415,195.52
  6. Step 6: Final answer
    x = 370,689.20

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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.