Home / 1,255,280.20-1,882,920.30-413,722.60

Finding the Fourth Proportional to 1,255,280.20, 1,882,920.30 and 413,722.60

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Solution

The fourth proportional to 1,255,280.20, 1,882,920.30 and 413,722.60 is: 620,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,280.20 : 1,882,920.30 = 413,722.60 : x
  2. Step 2: Convert to fraction form
    1,255,280.20/1,882,920.30 = 413,722.60/x
  3. Step 3: Cross multiply
    1,255,280.20x = 1,882,920.30 × 413,722.60
  4. Step 4: Simplify right side
    1,255,280.20x = 779,006,682,108.78
  5. Step 5: Solve for x
    x = 779,006,682,108.78/1,255,280.20
  6. Step 6: Final answer
    x = 620,583.90

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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.