Home / 738,940.50-1,019,737.27-399,408.75

Finding the Fourth Proportional to 738,940.50, 1,019,737.27 and 399,408.75

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Solution

The fourth proportional to 738,940.50, 1,019,737.27 and 399,408.75 is: 551,183.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,940.50 : 1,019,737.27 = 399,408.75 : x
  2. Step 2: Convert to fraction form
    738,940.50/1,019,737.27 = 399,408.75/x
  3. Step 3: Cross multiply
    738,940.50x = 1,019,737.27 × 399,408.75
  4. Step 4: Simplify right side
    738,940.50x = 407,291,988,339.11
  5. Step 5: Solve for x
    x = 407,291,988,339.11/738,940.50
  6. Step 6: Final answer
    x = 551,183.74

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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.