Home / 848,138.86-1,272,205.74-342,693.88

Finding the Fourth Proportional to 848,138.86, 1,272,205.74 and 342,693.88

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Solution

The fourth proportional to 848,138.86, 1,272,205.74 and 342,693.88 is: 514,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,138.86 : 1,272,205.74 = 342,693.88 : x
  2. Step 2: Convert to fraction form
    848,138.86/1,272,205.74 = 342,693.88/x
  3. Step 3: Cross multiply
    848,138.86x = 1,272,205.74 × 342,693.88
  4. Step 4: Simplify right side
    848,138.86x = 435,977,121,198.87
  5. Step 5: Solve for x
    x = 435,977,121,198.87/848,138.86
  6. Step 6: Final answer
    x = 514,039.79

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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.