Home / 865,664.91-1,298,562.63-258,405.26

Finding the Fourth Proportional to 865,664.91, 1,298,562.63 and 258,405.26

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Solution

The fourth proportional to 865,664.91, 1,298,562.63 and 258,405.26 is: 387,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,664.91 : 1,298,562.63 = 258,405.26 : x
  2. Step 2: Convert to fraction form
    865,664.91/1,298,562.63 = 258,405.26/x
  3. Step 3: Cross multiply
    865,664.91x = 1,298,562.63 × 258,405.26
  4. Step 4: Simplify right side
    865,664.91x = 335,555,408,023.13
  5. Step 5: Solve for x
    x = 335,555,408,023.13/865,664.91
  6. Step 6: Final answer
    x = 387,627.36

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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.