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Finding the Fourth Proportional to 664,128.12, 996,670.92 and 264,537.74

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Solution

The fourth proportional to 664,128.12, 996,670.92 and 264,537.74 is: 396,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,128.12 : 996,670.92 = 264,537.74 : x
  2. Step 2: Convert to fraction form
    664,128.12/996,670.92 = 264,537.74/x
  3. Step 3: Cross multiply
    664,128.12x = 996,670.92 × 264,537.74
  4. Step 4: Simplify right side
    664,128.12x = 263,657,072,700.52
  5. Step 5: Solve for x
    x = 263,657,072,700.52/664,128.12
  6. Step 6: Final answer
    x = 396,997.30

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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.