Home / 945,361.92-1,418,319.36-280,531.20

Finding the Fourth Proportional to 945,361.92, 1,418,319.36 and 280,531.20

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Solution

The fourth proportional to 945,361.92, 1,418,319.36 and 280,531.20 is: 420,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,361.92 : 1,418,319.36 = 280,531.20 : x
  2. Step 2: Convert to fraction form
    945,361.92/1,418,319.36 = 280,531.20/x
  3. Step 3: Cross multiply
    945,361.92x = 1,418,319.36 × 280,531.20
  4. Step 4: Simplify right side
    945,361.92x = 397,882,832,044.03
  5. Step 5: Solve for x
    x = 397,882,832,044.03/945,361.92
  6. Step 6: Final answer
    x = 420,878.84

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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.