Home / 538,844.68-743,578.38-306,265.52

Finding the Fourth Proportional to 538,844.68, 743,578.38 and 306,265.52

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Solution

The fourth proportional to 538,844.68, 743,578.38 and 306,265.52 is: 422,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,844.68 : 743,578.38 = 306,265.52 : x
  2. Step 2: Convert to fraction form
    538,844.68/743,578.38 = 306,265.52/x
  3. Step 3: Cross multiply
    538,844.68x = 743,578.38 × 306,265.52
  4. Step 4: Simplify right side
    538,844.68x = 227,732,421,070.40
  5. Step 5: Solve for x
    x = 227,732,421,070.40/538,844.68
  6. Step 6: Final answer
    x = 422,630.92

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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.