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Finding the Fourth Proportional to 649,198.40, 973,797.60 and 491,734.40

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Solution

The fourth proportional to 649,198.40, 973,797.60 and 491,734.40 is: 737,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,198.40 : 973,797.60 = 491,734.40 : x
  2. Step 2: Convert to fraction form
    649,198.40/973,797.60 = 491,734.40/x
  3. Step 3: Cross multiply
    649,198.40x = 973,797.60 × 491,734.40
  4. Step 4: Simplify right side
    649,198.40x = 478,849,778,557.44
  5. Step 5: Solve for x
    x = 478,849,778,557.44/649,198.40
  6. Step 6: Final answer
    x = 737,601.60

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Half scale
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Double scale
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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.