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Finding the Fourth Proportional to 664,548.58, 996,774.67 and 259,664.68

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Solution

The fourth proportional to 664,548.58, 996,774.67 and 259,664.68 is: 389,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,548.58 : 996,774.67 = 259,664.68 : x
  2. Step 2: Convert to fraction form
    664,548.58/996,774.67 = 259,664.68/x
  3. Step 3: Cross multiply
    664,548.58x = 996,774.67 × 259,664.68
  4. Step 4: Simplify right side
    664,548.58x = 258,827,172,576.56
  5. Step 5: Solve for x
    x = 258,827,172,576.56/664,548.58
  6. Step 6: Final answer
    x = 389,478.18

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1.5x scale

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.