Home / 722,111.53-996,545.01-399,821.58

Finding the Fourth Proportional to 722,111.53, 996,545.01 and 399,821.58

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Solution

The fourth proportional to 722,111.53, 996,545.01 and 399,821.58 is: 551,771.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,111.53 : 996,545.01 = 399,821.58 : x
  2. Step 2: Convert to fraction form
    722,111.53/996,545.01 = 399,821.58/x
  3. Step 3: Cross multiply
    722,111.53x = 996,545.01 × 399,821.58
  4. Step 4: Simplify right side
    722,111.53x = 398,440,200,439.32
  5. Step 5: Solve for x
    x = 398,440,200,439.32/722,111.53
  6. Step 6: Final answer
    x = 551,771.00

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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.