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Finding the Fourth Proportional to 557,443.22, 769,255.38 and 302,793.80

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Solution

The fourth proportional to 557,443.22, 769,255.38 and 302,793.80 is: 417,846.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,443.22 : 769,255.38 = 302,793.80 : x
  2. Step 2: Convert to fraction form
    557,443.22/769,255.38 = 302,793.80/x
  3. Step 3: Cross multiply
    557,443.22x = 769,255.38 × 302,793.80
  4. Step 4: Simplify right side
    557,443.22x = 232,925,755,834.37
  5. Step 5: Solve for x
    x = 232,925,755,834.37/557,443.22
  6. Step 6: Final answer
    x = 417,846.61

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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.