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Finding the Fourth Proportional to 664,012.60, 996,537.30 and 309,070.60

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Solution

The fourth proportional to 664,012.60, 996,537.30 and 309,070.60 is: 463,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,012.60 : 996,537.30 = 309,070.60 : x
  2. Step 2: Convert to fraction form
    664,012.60/996,537.30 = 309,070.60/x
  3. Step 3: Cross multiply
    664,012.60x = 996,537.30 × 309,070.60
  4. Step 4: Simplify right side
    664,012.60x = 308,000,381,233.38
  5. Step 5: Solve for x
    x = 308,000,381,233.38/664,012.60
  6. Step 6: Final answer
    x = 463,847.19

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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.