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Finding the Fourth Proportional to 668,993.19, 1,003,912.83 and 349,721.26

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Solution

The fourth proportional to 668,993.19, 1,003,912.83 and 349,721.26 is: 524,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,993.19 : 1,003,912.83 = 349,721.26 : x
  2. Step 2: Convert to fraction form
    668,993.19/1,003,912.83 = 349,721.26/x
  3. Step 3: Cross multiply
    668,993.19x = 1,003,912.83 × 349,721.26
  4. Step 4: Simplify right side
    668,993.19x = 351,089,657,327.98
  5. Step 5: Solve for x
    x = 351,089,657,327.98/668,993.19
  6. Step 6: Final answer
    x = 524,803.04

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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.