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Finding the Fourth Proportional to 649,879.11, 974,728.49 and 200,614.77

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Solution

The fourth proportional to 649,879.11, 974,728.49 and 200,614.77 is: 300,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,879.11 : 974,728.49 = 200,614.77 : x
  2. Step 2: Convert to fraction form
    649,879.11/974,728.49 = 200,614.77/x
  3. Step 3: Cross multiply
    649,879.11x = 974,728.49 × 200,614.77
  4. Step 4: Simplify right side
    649,879.11x = 195,544,930,830.72
  5. Step 5: Solve for x
    x = 195,544,930,830.72/649,879.11
  6. Step 6: Final answer
    x = 300,894.32

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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.