Home / 428,976.88-592,058.91-238,051.78

Finding the Fourth Proportional to 428,976.88, 592,058.91 and 238,051.78

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Solution

The fourth proportional to 428,976.88, 592,058.91 and 238,051.78 is: 328,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,976.88 : 592,058.91 = 238,051.78 : x
  2. Step 2: Convert to fraction form
    428,976.88/592,058.91 = 238,051.78/x
  3. Step 3: Cross multiply
    428,976.88x = 592,058.91 × 238,051.78
  4. Step 4: Simplify right side
    428,976.88x = 140,940,677,390.36
  5. Step 5: Solve for x
    x = 140,940,677,390.36/428,976.88
  6. Step 6: Final answer
    x = 328,550.75

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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.