Home / 964,778.86-1,331,218.72-556,731.80

Finding the Fourth Proportional to 964,778.86, 1,331,218.72 and 556,731.80

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Solution

The fourth proportional to 964,778.86, 1,331,218.72 and 556,731.80 is: 768,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,778.86 : 1,331,218.72 = 556,731.80 : x
  2. Step 2: Convert to fraction form
    964,778.86/1,331,218.72 = 556,731.80/x
  3. Step 3: Cross multiply
    964,778.86x = 1,331,218.72 × 556,731.80
  4. Step 4: Simplify right side
    964,778.86x = 741,131,794,179.30
  5. Step 5: Solve for x
    x = 741,131,794,179.30/964,778.86
  6. Step 6: Final answer
    x = 768,188.26

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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.