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Finding the Fourth Proportional to 649,194.40, 973,791.60 and 491,730.40

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Solution

The fourth proportional to 649,194.40, 973,791.60 and 491,730.40 is: 737,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,194.40 : 973,791.60 = 491,730.40 : x
  2. Step 2: Convert to fraction form
    649,194.40/973,791.60 = 491,730.40/x
  3. Step 3: Cross multiply
    649,194.40x = 973,791.60 × 491,730.40
  4. Step 4: Simplify right side
    649,194.40x = 478,842,932,984.64
  5. Step 5: Solve for x
    x = 478,842,932,984.64/649,194.40
  6. Step 6: Final answer
    x = 737,595.60

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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.