Home / 722,110.84-996,520.90-399,826.60

Finding the Fourth Proportional to 722,110.84, 996,520.90 and 399,826.60

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Solution

The fourth proportional to 722,110.84, 996,520.90 and 399,826.60 is: 551,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,110.84 : 996,520.90 = 399,826.60 : x
  2. Step 2: Convert to fraction form
    722,110.84/996,520.90 = 399,826.60/x
  3. Step 3: Cross multiply
    722,110.84x = 996,520.90 × 399,826.60
  4. Step 4: Simplify right side
    722,110.84x = 398,435,563,275.94
  5. Step 5: Solve for x
    x = 398,435,563,275.94/722,110.84
  6. Step 6: Final answer
    x = 551,765.10

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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.