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Finding the Fourth Proportional to 547,774.45, 755,914.55 and 306,058.64

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Solution

The fourth proportional to 547,774.45, 755,914.55 and 306,058.64 is: 422,352.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,774.45 : 755,914.55 = 306,058.64 : x
  2. Step 2: Convert to fraction form
    547,774.45/755,914.55 = 306,058.64/x
  3. Step 3: Cross multiply
    547,774.45x = 755,914.55 × 306,058.64
  4. Step 4: Simplify right side
    547,774.45x = 231,354,173,819.35
  5. Step 5: Solve for x
    x = 231,354,173,819.35/547,774.45
  6. Step 6: Final answer
    x = 422,352.99

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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.