Home / 693,429.30-1,040,326.20-220,113.90

Finding the Fourth Proportional to 693,429.30, 1,040,326.20 and 220,113.90

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Solution

The fourth proportional to 693,429.30, 1,040,326.20 and 220,113.90 is: 330,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,429.30 : 1,040,326.20 = 220,113.90 : x
  2. Step 2: Convert to fraction form
    693,429.30/1,040,326.20 = 220,113.90/x
  3. Step 3: Cross multiply
    693,429.30x = 1,040,326.20 × 220,113.90
  4. Step 4: Simplify right side
    693,429.30x = 228,990,257,154.18
  5. Step 5: Solve for x
    x = 228,990,257,154.18/693,429.30
  6. Step 6: Final answer
    x = 330,228.70

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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.