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Finding the Fourth Proportional to 664,707.70, 996,946.35 and 243,766.90

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Solution

The fourth proportional to 664,707.70, 996,946.35 and 243,766.90 is: 365,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,707.70 : 996,946.35 = 243,766.90 : x
  2. Step 2: Convert to fraction form
    664,707.70/996,946.35 = 243,766.90/x
  3. Step 3: Cross multiply
    664,707.70x = 996,946.35 × 243,766.90
  4. Step 4: Simplify right side
    664,707.70x = 243,022,521,205.82
  5. Step 5: Solve for x
    x = 243,022,521,205.82/664,707.70
  6. Step 6: Final answer
    x = 365,608.10

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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.