Home / 1,058,680.92-1,587,128.42-459,190.52

Finding the Fourth Proportional to 1,058,680.92, 1,587,128.42 and 459,190.52

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Solution

The fourth proportional to 1,058,680.92, 1,587,128.42 and 459,190.52 is: 688,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,680.92 : 1,587,128.42 = 459,190.52 : x
  2. Step 2: Convert to fraction form
    1,058,680.92/1,587,128.42 = 459,190.52/x
  3. Step 3: Cross multiply
    1,058,680.92x = 1,587,128.42 × 459,190.52
  4. Step 4: Simplify right side
    1,058,680.92x = 728,794,324,486.58
  5. Step 5: Solve for x
    x = 728,794,324,486.58/1,058,680.92
  6. Step 6: Final answer
    x = 688,398.47

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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.