Home / 859,198.20-1,288,963.25-326,677.83

Finding the Fourth Proportional to 859,198.20, 1,288,963.25 and 326,677.83

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Solution

The fourth proportional to 859,198.20, 1,288,963.25 and 326,677.83 is: 490,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,198.20 : 1,288,963.25 = 326,677.83 : x
  2. Step 2: Convert to fraction form
    859,198.20/1,288,963.25 = 326,677.83/x
  3. Step 3: Cross multiply
    859,198.20x = 1,288,963.25 × 326,677.83
  4. Step 4: Simplify right side
    859,198.20x = 421,075,712,217.79
  5. Step 5: Solve for x
    x = 421,075,712,217.79/859,198.20
  6. Step 6: Final answer
    x = 490,079.84

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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.