Home / 814,247.20-1,221,370.80-578,051.20

Finding the Fourth Proportional to 814,247.20, 1,221,370.80 and 578,051.20

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Solution

The fourth proportional to 814,247.20, 1,221,370.80 and 578,051.20 is: 867,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,247.20 : 1,221,370.80 = 578,051.20 : x
  2. Step 2: Convert to fraction form
    814,247.20/1,221,370.80 = 578,051.20/x
  3. Step 3: Cross multiply
    814,247.20x = 1,221,370.80 × 578,051.20
  4. Step 4: Simplify right side
    814,247.20x = 706,014,856,584.96
  5. Step 5: Solve for x
    x = 706,014,856,584.96/814,247.20
  6. Step 6: Final answer
    x = 867,076.80

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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.