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Finding the Fourth Proportional to 666,820, 1,000,230 and 199,876

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Solution

The fourth proportional to 666,820, 1,000,230 and 199,876 is: 299,814

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,820 : 1,000,230 = 199,876 : x
  2. Step 2: Convert to fraction form
    666,820/1,000,230 = 199,876/x
  3. Step 3: Cross multiply
    666,820x = 1,000,230 × 199,876
  4. Step 4: Simplify right side
    666,820x = 199,921,971,480
  5. Step 5: Solve for x
    x = 199,921,971,480/666,820
  6. Step 6: Final answer
    x = 299,814

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.