Home / 814,270.70-1,220,822.85-340,712.30

Finding the Fourth Proportional to 814,270.70, 1,220,822.85 and 340,712.30

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Solution

The fourth proportional to 814,270.70, 1,220,822.85 and 340,712.30 is: 510,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,270.70 : 1,220,822.85 = 340,712.30 : x
  2. Step 2: Convert to fraction form
    814,270.70/1,220,822.85 = 340,712.30/x
  3. Step 3: Cross multiply
    814,270.70x = 1,220,822.85 × 340,712.30
  4. Step 4: Simplify right side
    814,270.70x = 415,949,361,116.06
  5. Step 5: Solve for x
    x = 415,949,361,116.06/814,270.70
  6. Step 6: Final answer
    x = 510,824.42

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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.