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Finding the Fourth Proportional to 496,906.40, 745,359.60 and 297,840.80

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Solution

The fourth proportional to 496,906.40, 745,359.60 and 297,840.80 is: 446,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,906.40 : 745,359.60 = 297,840.80 : x
  2. Step 2: Convert to fraction form
    496,906.40/745,359.60 = 297,840.80/x
  3. Step 3: Cross multiply
    496,906.40x = 745,359.60 × 297,840.80
  4. Step 4: Simplify right side
    496,906.40x = 221,998,499,551.68
  5. Step 5: Solve for x
    x = 221,998,499,551.68/496,906.40
  6. Step 6: Final answer
    x = 446,761.20

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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.