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Finding the Fourth Proportional to 557,404.20, 835,620.30 and 379,333.80

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Solution

The fourth proportional to 557,404.20, 835,620.30 and 379,333.80 is: 568,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,404.20 : 835,620.30 = 379,333.80 : x
  2. Step 2: Convert to fraction form
    557,404.20/835,620.30 = 379,333.80/x
  3. Step 3: Cross multiply
    557,404.20x = 835,620.30 × 379,333.80
  4. Step 4: Simplify right side
    557,404.20x = 316,979,023,756.14
  5. Step 5: Solve for x
    x = 316,979,023,756.14/557,404.20
  6. Step 6: Final answer
    x = 568,669.96

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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.