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Finding the Fourth Proportional to 400,997.72, 597,958.03 and 397,398.08

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Solution

The fourth proportional to 400,997.72, 597,958.03 and 397,398.08 is: 592,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,997.72 : 597,958.03 = 397,398.08 : x
  2. Step 2: Convert to fraction form
    400,997.72/597,958.03 = 397,398.08/x
  3. Step 3: Cross multiply
    400,997.72x = 597,958.03 × 397,398.08
  4. Step 4: Simplify right side
    400,997.72x = 237,627,373,042.58
  5. Step 5: Solve for x
    x = 237,627,373,042.58/400,997.72
  6. Step 6: Final answer
    x = 592,590.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.