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Finding the Fourth Proportional to 998,220, 1,496,431.44 and 366,998.88

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Solution

The fourth proportional to 998,220, 1,496,431.44 and 366,998.88 is: 550,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,220 : 1,496,431.44 = 366,998.88 : x
  2. Step 2: Convert to fraction form
    998,220/1,496,431.44 = 366,998.88/x
  3. Step 3: Cross multiply
    998,220x = 1,496,431.44 × 366,998.88
  4. Step 4: Simplify right side
    998,220x = 549,188,662,476.79
  5. Step 5: Solve for x
    x = 549,188,662,476.79/998,220
  6. Step 6: Final answer
    x = 550,167.96

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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.