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Finding the Fourth Proportional to 547,581.48, 755,654.40 and 305,867.40

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Solution

The fourth proportional to 547,581.48, 755,654.40 and 305,867.40 is: 422,092.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,581.48 : 755,654.40 = 305,867.40 : x
  2. Step 2: Convert to fraction form
    547,581.48/755,654.40 = 305,867.40/x
  3. Step 3: Cross multiply
    547,581.48x = 755,654.40 × 305,867.40
  4. Step 4: Simplify right side
    547,581.48x = 231,130,046,626.56
  5. Step 5: Solve for x
    x = 231,130,046,626.56/547,581.48
  6. Step 6: Final answer
    x = 422,092.52

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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.