Home / 831,229.60-1,246,552.80-431,737.60

Finding the Fourth Proportional to 831,229.60, 1,246,552.80 and 431,737.60

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Solution

The fourth proportional to 831,229.60, 1,246,552.80 and 431,737.60 is: 647,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,229.60 : 1,246,552.80 = 431,737.60 : x
  2. Step 2: Convert to fraction form
    831,229.60/1,246,552.80 = 431,737.60/x
  3. Step 3: Cross multiply
    831,229.60x = 1,246,552.80 × 431,737.60
  4. Step 4: Simplify right side
    831,229.60x = 538,183,714,145.28
  5. Step 5: Solve for x
    x = 538,183,714,145.28/831,229.60
  6. Step 6: Final answer
    x = 647,454.94

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Why These Related Problems?

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