Home / 814,228.12-1,223,250.56-768,216.52

Finding the Fourth Proportional to 814,228.12, 1,223,250.56 and 768,216.52

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Solution

The fourth proportional to 814,228.12, 1,223,250.56 and 768,216.52 is: 1,154,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,228.12 : 1,223,250.56 = 768,216.52 : x
  2. Step 2: Convert to fraction form
    814,228.12/1,223,250.56 = 768,216.52/x
  3. Step 3: Cross multiply
    814,228.12x = 1,223,250.56 × 768,216.52
  4. Step 4: Simplify right side
    814,228.12x = 939,721,288,291.25
  5. Step 5: Solve for x
    x = 939,721,288,291.25/814,228.12
  6. Step 6: Final answer
    x = 1,154,125.32

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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.