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Finding the Fourth Proportional to 649,273.60, 973,910.40 and 425,324.80

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Solution

The fourth proportional to 649,273.60, 973,910.40 and 425,324.80 is: 637,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,273.60 : 973,910.40 = 425,324.80 : x
  2. Step 2: Convert to fraction form
    649,273.60/973,910.40 = 425,324.80/x
  3. Step 3: Cross multiply
    649,273.60x = 973,910.40 × 425,324.80
  4. Step 4: Simplify right side
    649,273.60x = 414,228,246,097.92
  5. Step 5: Solve for x
    x = 414,228,246,097.92/649,273.60
  6. Step 6: Final answer
    x = 637,987.20

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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.