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Finding the Fourth Proportional to 491,749.60, 737,624.40 and 305,125.60

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Solution

The fourth proportional to 491,749.60, 737,624.40 and 305,125.60 is: 457,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,749.60 : 737,624.40 = 305,125.60 : x
  2. Step 2: Convert to fraction form
    491,749.60/737,624.40 = 305,125.60/x
  3. Step 3: Cross multiply
    491,749.60x = 737,624.40 × 305,125.60
  4. Step 4: Simplify right side
    491,749.60x = 225,068,087,624.64
  5. Step 5: Solve for x
    x = 225,068,087,624.64/491,749.60
  6. Step 6: Final answer
    x = 457,688.40

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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.