Home / 571,100.25-788,119.19-312,936.16

Finding the Fourth Proportional to 571,100.25, 788,119.19 and 312,936.16

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Solution

The fourth proportional to 571,100.25, 788,119.19 and 312,936.16 is: 431,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,100.25 : 788,119.19 = 312,936.16 : x
  2. Step 2: Convert to fraction form
    571,100.25/788,119.19 = 312,936.16/x
  3. Step 3: Cross multiply
    571,100.25x = 788,119.19 × 312,936.16
  4. Step 4: Simplify right side
    571,100.25x = 246,630,992,940.91
  5. Step 5: Solve for x
    x = 246,630,992,940.91/571,100.25
  6. Step 6: Final answer
    x = 431,852.36

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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.