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Finding the Fourth Proportional to 503,722.80, 755,583.36 and 345,471.48

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Solution

The fourth proportional to 503,722.80, 755,583.36 and 345,471.48 is: 518,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,722.80 : 755,583.36 = 345,471.48 : x
  2. Step 2: Convert to fraction form
    503,722.80/755,583.36 = 345,471.48/x
  3. Step 3: Cross multiply
    503,722.80x = 755,583.36 × 345,471.48
  4. Step 4: Simplify right side
    503,722.80x = 261,032,501,642.57
  5. Step 5: Solve for x
    x = 261,032,501,642.57/503,722.80
  6. Step 6: Final answer
    x = 518,206.64

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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.