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Finding the Fourth Proportional to 547,726.56, 755,835.72 and 305,961.12

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Solution

The fourth proportional to 547,726.56, 755,835.72 and 305,961.12 is: 422,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,726.56 : 755,835.72 = 305,961.12 : x
  2. Step 2: Convert to fraction form
    547,726.56/755,835.72 = 305,961.12/x
  3. Step 3: Cross multiply
    547,726.56x = 755,835.72 × 305,961.12
  4. Step 4: Simplify right side
    547,726.56x = 231,256,343,427.21
  5. Step 5: Solve for x
    x = 231,256,343,427.21/547,726.56
  6. Step 6: Final answer
    x = 422,211.30

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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.