Home / 538,947.02-743,619.02-306,355.70

Finding the Fourth Proportional to 538,947.02, 743,619.02 and 306,355.70

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Solution

The fourth proportional to 538,947.02, 743,619.02 and 306,355.70 is: 422,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,947.02 : 743,619.02 = 306,355.70 : x
  2. Step 2: Convert to fraction form
    538,947.02/743,619.02 = 306,355.70/x
  3. Step 3: Cross multiply
    538,947.02x = 743,619.02 × 306,355.70
  4. Step 4: Simplify right side
    538,947.02x = 227,811,926,963.33
  5. Step 5: Solve for x
    x = 227,811,926,963.33/538,947.02
  6. Step 6: Final answer
    x = 422,698.18

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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.