Home / 860,523.52-1,187,383.04-478,540.80

Finding the Fourth Proportional to 860,523.52, 1,187,383.04 and 478,540.80

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Solution

The fourth proportional to 860,523.52, 1,187,383.04 and 478,540.80 is: 660,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,523.52 : 1,187,383.04 = 478,540.80 : x
  2. Step 2: Convert to fraction form
    860,523.52/1,187,383.04 = 478,540.80/x
  3. Step 3: Cross multiply
    860,523.52x = 1,187,383.04 × 478,540.80
  4. Step 4: Simplify right side
    860,523.52x = 568,211,229,868.03
  5. Step 5: Solve for x
    x = 568,211,229,868.03/860,523.52
  6. Step 6: Final answer
    x = 660,308.77

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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.