Home / 831,518.80-1,248,007.20-494,137.60

Finding the Fourth Proportional to 831,518.80, 1,248,007.20 and 494,137.60

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Solution

The fourth proportional to 831,518.80, 1,248,007.20 and 494,137.60 is: 741,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,518.80 : 1,248,007.20 = 494,137.60 : x
  2. Step 2: Convert to fraction form
    831,518.80/1,248,007.20 = 494,137.60/x
  3. Step 3: Cross multiply
    831,518.80x = 1,248,007.20 × 494,137.60
  4. Step 4: Simplify right side
    831,518.80x = 616,687,282,590.72
  5. Step 5: Solve for x
    x = 616,687,282,590.72/831,518.80
  6. Step 6: Final answer
    x = 741,639.61

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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.