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Finding the Fourth Proportional to 668,675.79, 1,003,010.15 and 163,239.44

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Solution

The fourth proportional to 668,675.79, 1,003,010.15 and 163,239.44 is: 244,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,675.79 : 1,003,010.15 = 163,239.44 : x
  2. Step 2: Convert to fraction form
    668,675.79/1,003,010.15 = 163,239.44/x
  3. Step 3: Cross multiply
    668,675.79x = 1,003,010.15 × 163,239.44
  4. Step 4: Simplify right side
    668,675.79x = 163,730,809,369.07
  5. Step 5: Solve for x
    x = 163,730,809,369.07/668,675.79
  6. Step 6: Final answer
    x = 244,858.29

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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.