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Finding the Fourth Proportional to 398,688.88, 598,033.32 and 273,650.80

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Solution

The fourth proportional to 398,688.88, 598,033.32 and 273,650.80 is: 410,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,688.88 : 598,033.32 = 273,650.80 : x
  2. Step 2: Convert to fraction form
    398,688.88/598,033.32 = 273,650.80/x
  3. Step 3: Cross multiply
    398,688.88x = 598,033.32 × 273,650.80
  4. Step 4: Simplify right side
    398,688.88x = 163,652,296,444.66
  5. Step 5: Solve for x
    x = 163,652,296,444.66/398,688.88
  6. Step 6: Final answer
    x = 410,476.20

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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.