Home / 427,777.47-590,377.82-320,159.25

Finding the Fourth Proportional to 427,777.47, 590,377.82 and 320,159.25

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Solution

The fourth proportional to 427,777.47, 590,377.82 and 320,159.25 is: 441,853.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,777.47 : 590,377.82 = 320,159.25 : x
  2. Step 2: Convert to fraction form
    427,777.47/590,377.82 = 320,159.25/x
  3. Step 3: Cross multiply
    427,777.47x = 590,377.82 × 320,159.25
  4. Step 4: Simplify right side
    427,777.47x = 189,014,918,467.04
  5. Step 5: Solve for x
    x = 189,014,918,467.04/427,777.47
  6. Step 6: Final answer
    x = 441,853.37

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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.