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Finding the Fourth Proportional to 636,418.28, 954,627.06 and 187,142.88

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Solution

The fourth proportional to 636,418.28, 954,627.06 and 187,142.88 is: 280,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,418.28 : 954,627.06 = 187,142.88 : x
  2. Step 2: Convert to fraction form
    636,418.28/954,627.06 = 187,142.88/x
  3. Step 3: Cross multiply
    636,418.28x = 954,627.06 × 187,142.88
  4. Step 4: Simplify right side
    636,418.28x = 178,651,657,334.33
  5. Step 5: Solve for x
    x = 178,651,657,334.33/636,418.28
  6. Step 6: Final answer
    x = 280,714.21

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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.