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Finding the Fourth Proportional to 402,414.48, 603,155.16 and 379,086.48

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Solution

The fourth proportional to 402,414.48, 603,155.16 and 379,086.48 is: 568,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,414.48 : 603,155.16 = 379,086.48 : x
  2. Step 2: Convert to fraction form
    402,414.48/603,155.16 = 379,086.48/x
  3. Step 3: Cross multiply
    402,414.48x = 603,155.16 × 379,086.48
  4. Step 4: Simplify right side
    402,414.48x = 228,647,966,498.24
  5. Step 5: Solve for x
    x = 228,647,966,498.24/402,414.48
  6. Step 6: Final answer
    x = 568,190.21

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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.