Home / 418,522.22-577,845.84-280,907.48

Finding the Fourth Proportional to 418,522.22, 577,845.84 and 280,907.48

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Solution

The fourth proportional to 418,522.22, 577,845.84 and 280,907.48 is: 387,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,522.22 : 577,845.84 = 280,907.48 : x
  2. Step 2: Convert to fraction form
    418,522.22/577,845.84 = 280,907.48/x
  3. Step 3: Cross multiply
    418,522.22x = 577,845.84 × 280,907.48
  4. Step 4: Simplify right side
    418,522.22x = 162,321,218,742.88
  5. Step 5: Solve for x
    x = 162,321,218,742.88/418,522.22
  6. Step 6: Final answer
    x = 387,843.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.