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Finding the Fourth Proportional to 522,490.56, 721,190.20 and 341,229.86

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Solution

The fourth proportional to 522,490.56, 721,190.20 and 341,229.86 is: 470,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,490.56 : 721,190.20 = 341,229.86 : x
  2. Step 2: Convert to fraction form
    522,490.56/721,190.20 = 341,229.86/x
  3. Step 3: Cross multiply
    522,490.56x = 721,190.20 × 341,229.86
  4. Step 4: Simplify right side
    522,490.56x = 246,091,630,979.37
  5. Step 5: Solve for x
    x = 246,091,630,979.37/522,490.56
  6. Step 6: Final answer
    x = 470,997.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.