Home / 538,428.72-743,036.61-296,719.95

Finding the Fourth Proportional to 538,428.72, 743,036.61 and 296,719.95

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Solution

The fourth proportional to 538,428.72, 743,036.61 and 296,719.95 is: 409,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,428.72 : 743,036.61 = 296,719.95 : x
  2. Step 2: Convert to fraction form
    538,428.72/743,036.61 = 296,719.95/x
  3. Step 3: Cross multiply
    538,428.72x = 743,036.61 × 296,719.95
  4. Step 4: Simplify right side
    538,428.72x = 220,473,785,767.37
  5. Step 5: Solve for x
    x = 220,473,785,767.37/538,428.72
  6. Step 6: Final answer
    x = 409,476.27

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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.