Home / 420,050.08-579,648.18-238,738.06

Finding the Fourth Proportional to 420,050.08, 579,648.18 and 238,738.06

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Solution

The fourth proportional to 420,050.08, 579,648.18 and 238,738.06 is: 329,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,050.08 : 579,648.18 = 238,738.06 : x
  2. Step 2: Convert to fraction form
    420,050.08/579,648.18 = 238,738.06/x
  3. Step 3: Cross multiply
    420,050.08x = 579,648.18 × 238,738.06
  4. Step 4: Simplify right side
    420,050.08x = 138,384,081,975.73
  5. Step 5: Solve for x
    x = 138,384,081,975.73/420,050.08
  6. Step 6: Final answer
    x = 329,446.63

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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.