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Finding the Fourth Proportional to 558,165.80, 770,260.02 and 303,514.76

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Solution

The fourth proportional to 558,165.80, 770,260.02 and 303,514.76 is: 418,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,165.80 : 770,260.02 = 303,514.76 : x
  2. Step 2: Convert to fraction form
    558,165.80/770,260.02 = 303,514.76/x
  3. Step 3: Cross multiply
    558,165.80x = 770,260.02 × 303,514.76
  4. Step 4: Simplify right side
    558,165.80x = 233,785,285,107.90
  5. Step 5: Solve for x
    x = 233,785,285,107.90/558,165.80
  6. Step 6: Final answer
    x = 418,845.59

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Double scale
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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.