Home / 668,799.50-1,002,988.49-219,415.68

Finding the Fourth Proportional to 668,799.50, 1,002,988.49 and 219,415.68

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Solution

The fourth proportional to 668,799.50, 1,002,988.49 and 219,415.68 is: 329,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,799.50 : 1,002,988.49 = 219,415.68 : x
  2. Step 2: Convert to fraction form
    668,799.50/1,002,988.49 = 219,415.68/x
  3. Step 3: Cross multiply
    668,799.50x = 1,002,988.49 × 219,415.68
  4. Step 4: Simplify right side
    668,799.50x = 220,071,400,468.45
  5. Step 5: Solve for x
    x = 220,071,400,468.45/668,799.50
  6. Step 6: Final answer
    x = 329,054.38

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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.