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Finding the Fourth Proportional to 664,453.80, 996,000.30 and 326,975.40

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Solution

The fourth proportional to 664,453.80, 996,000.30 and 326,975.40 is: 490,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,453.80 : 996,000.30 = 326,975.40 : x
  2. Step 2: Convert to fraction form
    664,453.80/996,000.30 = 326,975.40/x
  3. Step 3: Cross multiply
    664,453.80x = 996,000.30 × 326,975.40
  4. Step 4: Simplify right side
    664,453.80x = 325,667,596,492.62
  5. Step 5: Solve for x
    x = 325,667,596,492.62/664,453.80
  6. Step 6: Final answer
    x = 490,128.28

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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.