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Finding the Fourth Proportional to 486,058.88, 670,745.44 and 265,287.68

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Solution

The fourth proportional to 486,058.88, 670,745.44 and 265,287.68 is: 366,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,058.88 : 670,745.44 = 265,287.68 : x
  2. Step 2: Convert to fraction form
    486,058.88/670,745.44 = 265,287.68/x
  3. Step 3: Cross multiply
    486,058.88x = 670,745.44 × 265,287.68
  4. Step 4: Simplify right side
    486,058.88x = 177,940,501,648.18
  5. Step 5: Solve for x
    x = 177,940,501,648.18/486,058.88
  6. Step 6: Final answer
    x = 366,088.37

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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.