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Finding the Fourth Proportional to 664,016.60, 996,543.30 and 309,074.60

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Solution

The fourth proportional to 664,016.60, 996,543.30 and 309,074.60 is: 463,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,016.60 : 996,543.30 = 309,074.60 : x
  2. Step 2: Convert to fraction form
    664,016.60/996,543.30 = 309,074.60/x
  3. Step 3: Cross multiply
    664,016.60x = 996,543.30 × 309,074.60
  4. Step 4: Simplify right side
    664,016.60x = 308,006,221,830.18
  5. Step 5: Solve for x
    x = 308,006,221,830.18/664,016.60
  6. Step 6: Final answer
    x = 463,853.20

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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.