Home / 813,230.52-1,219,845.54-393,326.52

Finding the Fourth Proportional to 813,230.52, 1,219,845.54 and 393,326.52

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Solution

The fourth proportional to 813,230.52, 1,219,845.54 and 393,326.52 is: 589,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,230.52 : 1,219,845.54 = 393,326.52 : x
  2. Step 2: Convert to fraction form
    813,230.52/1,219,845.54 = 393,326.52/x
  3. Step 3: Cross multiply
    813,230.52x = 1,219,845.54 × 393,326.52
  4. Step 4: Simplify right side
    813,230.52x = 479,797,601,185.72
  5. Step 5: Solve for x
    x = 479,797,601,185.72/813,230.52
  6. Step 6: Final answer
    x = 589,989.66

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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.