Home / 613,977.87-847,287.33-342,029.69

Finding the Fourth Proportional to 613,977.87, 847,287.33 and 342,029.69

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Solution

The fourth proportional to 613,977.87, 847,287.33 and 342,029.69 is: 471,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,977.87 : 847,287.33 = 342,029.69 : x
  2. Step 2: Convert to fraction form
    613,977.87/847,287.33 = 342,029.69/x
  3. Step 3: Cross multiply
    613,977.87x = 847,287.33 × 342,029.69
  4. Step 4: Simplify right side
    613,977.87x = 289,797,422,820.83
  5. Step 5: Solve for x
    x = 289,797,422,820.83/613,977.87
  6. Step 6: Final answer
    x = 471,999.79

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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.