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Finding the Fourth Proportional to 398,847.40, 597,464.70 and 248,626.60

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Solution

The fourth proportional to 398,847.40, 597,464.70 and 248,626.60 is: 372,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,847.40 : 597,464.70 = 248,626.60 : x
  2. Step 2: Convert to fraction form
    398,847.40/597,464.70 = 248,626.60/x
  3. Step 3: Cross multiply
    398,847.40x = 597,464.70 × 248,626.60
  4. Step 4: Simplify right side
    398,847.40x = 148,545,616,981.02
  5. Step 5: Solve for x
    x = 148,545,616,981.02/398,847.40
  6. Step 6: Final answer
    x = 372,437.22

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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.