Home / 1,086,540.13-1,630,143.92-518,645.89

Finding the Fourth Proportional to 1,086,540.13, 1,630,143.92 and 518,645.89

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Solution

The fourth proportional to 1,086,540.13, 1,630,143.92 and 518,645.89 is: 778,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,540.13 : 1,630,143.92 = 518,645.89 : x
  2. Step 2: Convert to fraction form
    1,086,540.13/1,630,143.92 = 518,645.89/x
  3. Step 3: Cross multiply
    1,086,540.13x = 1,630,143.92 × 518,645.89
  4. Step 4: Simplify right side
    1,086,540.13x = 845,467,444,216.49
  5. Step 5: Solve for x
    x = 845,467,444,216.49/1,086,540.13
  6. Step 6: Final answer
    x = 778,128.13

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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.