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Finding the Fourth Proportional to 496,277.70, 744,416.55 and 419,295.30

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Solution

The fourth proportional to 496,277.70, 744,416.55 and 419,295.30 is: 628,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,277.70 : 744,416.55 = 419,295.30 : x
  2. Step 2: Convert to fraction form
    496,277.70/744,416.55 = 419,295.30/x
  3. Step 3: Cross multiply
    496,277.70x = 744,416.55 × 419,295.30
  4. Step 4: Simplify right side
    496,277.70x = 312,130,360,657.22
  5. Step 5: Solve for x
    x = 312,130,360,657.22/496,277.70
  6. Step 6: Final answer
    x = 628,942.95

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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.