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Finding the Fourth Proportional to 722,199.08, 996,622.57 and 399,902.29

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Solution

The fourth proportional to 722,199.08, 996,622.57 and 399,902.29 is: 551,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,199.08 : 996,622.57 = 399,902.29 : x
  2. Step 2: Convert to fraction form
    722,199.08/996,622.57 = 399,902.29/x
  3. Step 3: Cross multiply
    722,199.08x = 996,622.57 × 399,902.29
  4. Step 4: Simplify right side
    722,199.08x = 398,551,648,008.69
  5. Step 5: Solve for x
    x = 398,551,648,008.69/722,199.08
  6. Step 6: Final answer
    x = 551,858.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.