Home / 779,920.60-1,167,912.60-512,231.80

Finding the Fourth Proportional to 779,920.60, 1,167,912.60 and 512,231.80

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Solution

The fourth proportional to 779,920.60, 1,167,912.60 and 512,231.80 is: 767,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,920.60 : 1,167,912.60 = 512,231.80 : x
  2. Step 2: Convert to fraction form
    779,920.60/1,167,912.60 = 512,231.80/x
  3. Step 3: Cross multiply
    779,920.60x = 1,167,912.60 × 512,231.80
  4. Step 4: Simplify right side
    779,920.60x = 598,241,973,340.68
  5. Step 5: Solve for x
    x = 598,241,973,340.68/779,920.60
  6. Step 6: Final answer
    x = 767,054.97

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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.