Home / 538,492-743,124.12-296,783.44

Finding the Fourth Proportional to 538,492, 743,124.12 and 296,783.44

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Solution

The fourth proportional to 538,492, 743,124.12 and 296,783.44 is: 409,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,492 : 743,124.12 = 296,783.44 : x
  2. Step 2: Convert to fraction form
    538,492/743,124.12 = 296,783.44/x
  3. Step 3: Cross multiply
    538,492x = 743,124.12 × 296,783.44
  4. Step 4: Simplify right side
    538,492x = 220,546,932,680.57
  5. Step 5: Solve for x
    x = 220,546,932,680.57/538,492
  6. Step 6: Final answer
    x = 409,563.99

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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.