Home / 788,587.20-1,181,131.20-315,028.80

Finding the Fourth Proportional to 788,587.20, 1,181,131.20 and 315,028.80

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Solution

The fourth proportional to 788,587.20, 1,181,131.20 and 315,028.80 is: 471,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,587.20 : 1,181,131.20 = 315,028.80 : x
  2. Step 2: Convert to fraction form
    788,587.20/1,181,131.20 = 315,028.80/x
  3. Step 3: Cross multiply
    788,587.20x = 1,181,131.20 × 315,028.80
  4. Step 4: Simplify right side
    788,587.20x = 372,090,344,578.56
  5. Step 5: Solve for x
    x = 372,090,344,578.56/788,587.20
  6. Step 6: Final answer
    x = 471,844.26

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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.