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Finding the Fourth Proportional to 398,853.40, 597,473.70 and 248,632.60

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Solution

The fourth proportional to 398,853.40, 597,473.70 and 248,632.60 is: 372,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,853.40 : 597,473.70 = 248,632.60 : x
  2. Step 2: Convert to fraction form
    398,853.40/597,473.70 = 248,632.60/x
  3. Step 3: Cross multiply
    398,853.40x = 597,473.70 × 248,632.60
  4. Step 4: Simplify right side
    398,853.40x = 148,551,439,462.62
  5. Step 5: Solve for x
    x = 148,551,439,462.62/398,853.40
  6. Step 6: Final answer
    x = 372,446.22

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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.