Home / 420,097.11-579,634.34-238,794.76

Finding the Fourth Proportional to 420,097.11, 579,634.34 and 238,794.76

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Solution

The fourth proportional to 420,097.11, 579,634.34 and 238,794.76 is: 329,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,097.11 : 579,634.34 = 238,794.76 : x
  2. Step 2: Convert to fraction form
    420,097.11/579,634.34 = 238,794.76/x
  3. Step 3: Cross multiply
    420,097.11x = 579,634.34 × 238,794.76
  4. Step 4: Simplify right side
    420,097.11x = 138,413,643,108.06
  5. Step 5: Solve for x
    x = 138,413,643,108.06/420,097.11
  6. Step 6: Final answer
    x = 329,480.11

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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.