Home / 694,869.20-1,042,649.40-274,158.80

Finding the Fourth Proportional to 694,869.20, 1,042,649.40 and 274,158.80

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Solution

The fourth proportional to 694,869.20, 1,042,649.40 and 274,158.80 is: 411,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,869.20 : 1,042,649.40 = 274,158.80 : x
  2. Step 2: Convert to fraction form
    694,869.20/1,042,649.40 = 274,158.80/x
  3. Step 3: Cross multiply
    694,869.20x = 1,042,649.40 × 274,158.80
  4. Step 4: Simplify right side
    694,869.20x = 285,851,508,324.72
  5. Step 5: Solve for x
    x = 285,851,508,324.72/694,869.20
  6. Step 6: Final answer
    x = 411,374.56

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1.5x scale

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.