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Finding the Fourth Proportional to 398,647.88, 598,252.02 and 360,533.60

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Solution

The fourth proportional to 398,647.88, 598,252.02 and 360,533.60 is: 541,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,647.88 : 598,252.02 = 360,533.60 : x
  2. Step 2: Convert to fraction form
    398,647.88/598,252.02 = 360,533.60/x
  3. Step 3: Cross multiply
    398,647.88x = 598,252.02 × 360,533.60
  4. Step 4: Simplify right side
    398,647.88x = 215,689,954,477.87
  5. Step 5: Solve for x
    x = 215,689,954,477.87/398,647.88
  6. Step 6: Final answer
    x = 541,053.81

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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.