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Finding the Fourth Proportional to 668,858.69, 1,003,392.36 and 219,477.26

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Solution

The fourth proportional to 668,858.69, 1,003,392.36 and 219,477.26 is: 329,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,858.69 : 1,003,392.36 = 219,477.26 : x
  2. Step 2: Convert to fraction form
    668,858.69/1,003,392.36 = 219,477.26/x
  3. Step 3: Cross multiply
    668,858.69x = 1,003,392.36 × 219,477.26
  4. Step 4: Simplify right side
    668,858.69x = 220,221,800,860.77
  5. Step 5: Solve for x
    x = 220,221,800,860.77/668,858.69
  6. Step 6: Final answer
    x = 329,250.12

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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.