Home / 668,801.04-1,002,990.69-219,417.18

Finding the Fourth Proportional to 668,801.04, 1,002,990.69 and 219,417.18

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Solution

The fourth proportional to 668,801.04, 1,002,990.69 and 219,417.18 is: 329,056.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,801.04 : 1,002,990.69 = 219,417.18 : x
  2. Step 2: Convert to fraction form
    668,801.04/1,002,990.69 = 219,417.18/x
  3. Step 3: Cross multiply
    668,801.04x = 1,002,990.69 × 219,417.18
  4. Step 4: Simplify right side
    668,801.04x = 220,073,388,766.05
  5. Step 5: Solve for x
    x = 220,073,388,766.05/668,801.04
  6. Step 6: Final answer
    x = 329,056.59

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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.