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Finding the Fourth Proportional to 488,956.20, 734,600.70 and 437,634.60

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Solution

The fourth proportional to 488,956.20, 734,600.70 and 437,634.60 is: 657,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,956.20 : 734,600.70 = 437,634.60 : x
  2. Step 2: Convert to fraction form
    488,956.20/734,600.70 = 437,634.60/x
  3. Step 3: Cross multiply
    488,956.20x = 734,600.70 × 437,634.60
  4. Step 4: Simplify right side
    488,956.20x = 321,486,683,504.22
  5. Step 5: Solve for x
    x = 321,486,683,504.22/488,956.20
  6. Step 6: Final answer
    x = 657,495.87

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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.