Home / 842,518.26-1,162,391.31-479,685.39

Finding the Fourth Proportional to 842,518.26, 1,162,391.31 and 479,685.39

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Solution

The fourth proportional to 842,518.26, 1,162,391.31 and 479,685.39 is: 661,804.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,518.26 : 1,162,391.31 = 479,685.39 : x
  2. Step 2: Convert to fraction form
    842,518.26/1,162,391.31 = 479,685.39/x
  3. Step 3: Cross multiply
    842,518.26x = 1,162,391.31 × 479,685.39
  4. Step 4: Simplify right side
    842,518.26x = 557,582,131,049.45
  5. Step 5: Solve for x
    x = 557,582,131,049.45/842,518.26
  6. Step 6: Final answer
    x = 661,804.21

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1.5x scale

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.