Home / 945,382.88-1,418,073.60-280,534.88

Finding the Fourth Proportional to 945,382.88, 1,418,073.60 and 280,534.88

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Solution

The fourth proportional to 945,382.88, 1,418,073.60 and 280,534.88 is: 420,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,382.88 : 1,418,073.60 = 280,534.88 : x
  2. Step 2: Convert to fraction form
    945,382.88/1,418,073.60 = 280,534.88/x
  3. Step 3: Cross multiply
    945,382.88x = 1,418,073.60 × 280,534.88
  4. Step 4: Simplify right side
    945,382.88x = 397,819,107,207.17
  5. Step 5: Solve for x
    x = 397,819,107,207.17/945,382.88
  6. Step 6: Final answer
    x = 420,802.11

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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.