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Finding the Fourth Proportional to 800,608.23, 1,104,730.23 and 478,249.89

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Solution

The fourth proportional to 800,608.23, 1,104,730.23 and 478,249.89 is: 659,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,608.23 : 1,104,730.23 = 478,249.89 : x
  2. Step 2: Convert to fraction form
    800,608.23/1,104,730.23 = 478,249.89/x
  3. Step 3: Cross multiply
    800,608.23x = 1,104,730.23 × 478,249.89
  4. Step 4: Simplify right side
    800,608.23x = 528,337,110,977.18
  5. Step 5: Solve for x
    x = 528,337,110,977.18/800,608.23
  6. Step 6: Final answer
    x = 659,919.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.