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Finding the Fourth Proportional to 517,490.66, 775,990.14 and 180,490.37

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Solution

The fourth proportional to 517,490.66, 775,990.14 and 180,490.37 is: 270,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,490.66 : 775,990.14 = 180,490.37 : x
  2. Step 2: Convert to fraction form
    517,490.66/775,990.14 = 180,490.37/x
  3. Step 3: Cross multiply
    517,490.66x = 775,990.14 × 180,490.37
  4. Step 4: Simplify right side
    517,490.66x = 140,058,743,605.00
  5. Step 5: Solve for x
    x = 140,058,743,605.00/517,490.66
  6. Step 6: Final answer
    x = 270,649.80

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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.