Home / 850,379.52-1,172,825.64-620,678.64

Finding the Fourth Proportional to 850,379.52, 1,172,825.64 and 620,678.64

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Solution

The fourth proportional to 850,379.52, 1,172,825.64 and 620,678.64 is: 856,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,379.52 : 1,172,825.64 = 620,678.64 : x
  2. Step 2: Convert to fraction form
    850,379.52/1,172,825.64 = 620,678.64/x
  3. Step 3: Cross multiply
    850,379.52x = 1,172,825.64 × 620,678.64
  4. Step 4: Simplify right side
    850,379.52x = 727,947,823,192.33
  5. Step 5: Solve for x
    x = 727,947,823,192.33/850,379.52
  6. Step 6: Final answer
    x = 856,026.99

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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.