Home / 715,743.80-1,073,615.70-396,879.20

Finding the Fourth Proportional to 715,743.80, 1,073,615.70 and 396,879.20

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Solution

The fourth proportional to 715,743.80, 1,073,615.70 and 396,879.20 is: 595,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,743.80 : 1,073,615.70 = 396,879.20 : x
  2. Step 2: Convert to fraction form
    715,743.80/1,073,615.70 = 396,879.20/x
  3. Step 3: Cross multiply
    715,743.80x = 1,073,615.70 × 396,879.20
  4. Step 4: Simplify right side
    715,743.80x = 426,095,740,123.44
  5. Step 5: Solve for x
    x = 426,095,740,123.44/715,743.80
  6. Step 6: Final answer
    x = 595,318.80

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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.