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Finding the Fourth Proportional to 590,261.92, 814,559.76 and 321,988

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Solution

The fourth proportional to 590,261.92, 814,559.76 and 321,988 is: 444,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,261.92 : 814,559.76 = 321,988 : x
  2. Step 2: Convert to fraction form
    590,261.92/814,559.76 = 321,988/x
  3. Step 3: Cross multiply
    590,261.92x = 814,559.76 × 321,988
  4. Step 4: Simplify right side
    590,261.92x = 262,278,468,002.88
  5. Step 5: Solve for x
    x = 262,278,468,002.88/590,261.92
  6. Step 6: Final answer
    x = 444,342.52

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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.