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Finding the Fourth Proportional to 399,037.04, 550,224.60 and 326,212.64

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Solution

The fourth proportional to 399,037.04, 550,224.60 and 326,212.64 is: 449,808.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,037.04 : 550,224.60 = 326,212.64 : x
  2. Step 2: Convert to fraction form
    399,037.04/550,224.60 = 326,212.64/x
  3. Step 3: Cross multiply
    399,037.04x = 550,224.60 × 326,212.64
  4. Step 4: Simplify right side
    399,037.04x = 179,490,219,358.94
  5. Step 5: Solve for x
    x = 179,490,219,358.94/399,037.04
  6. Step 6: Final answer
    x = 449,808.42

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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.