Home / 814,742.40-1,220,477.76-415,367.04

Finding the Fourth Proportional to 814,742.40, 1,220,477.76 and 415,367.04

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Solution

The fourth proportional to 814,742.40, 1,220,477.76 and 415,367.04 is: 622,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,742.40 : 1,220,477.76 = 415,367.04 : x
  2. Step 2: Convert to fraction form
    814,742.40/1,220,477.76 = 415,367.04/x
  3. Step 3: Cross multiply
    814,742.40x = 1,220,477.76 × 415,367.04
  4. Step 4: Simplify right side
    814,742.40x = 506,946,234,557.03
  5. Step 5: Solve for x
    x = 506,946,234,557.03/814,742.40
  6. Step 6: Final answer
    x = 622,216.59

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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.