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Finding the Fourth Proportional to 558,749.70, 838,124.55 and 203,775.30

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Solution

The fourth proportional to 558,749.70, 838,124.55 and 203,775.30 is: 305,662.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,749.70 : 838,124.55 = 203,775.30 : x
  2. Step 2: Convert to fraction form
    558,749.70/838,124.55 = 203,775.30/x
  3. Step 3: Cross multiply
    558,749.70x = 838,124.55 × 203,775.30
  4. Step 4: Simplify right side
    558,749.70x = 170,789,081,613.62
  5. Step 5: Solve for x
    x = 170,789,081,613.62/558,749.70
  6. Step 6: Final answer
    x = 305,662.95

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Similar ratio
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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.