Home / 420,096.11-579,632.96-238,793.76

Finding the Fourth Proportional to 420,096.11, 579,632.96 and 238,793.76

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Solution

The fourth proportional to 420,096.11, 579,632.96 and 238,793.76 is: 329,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,096.11 : 579,632.96 = 238,793.76 : x
  2. Step 2: Convert to fraction form
    420,096.11/579,632.96 = 238,793.76/x
  3. Step 3: Cross multiply
    420,096.11x = 579,632.96 × 238,793.76
  4. Step 4: Simplify right side
    420,096.11x = 138,412,734,535.31
  5. Step 5: Solve for x
    x = 138,412,734,535.31/420,096.11
  6. Step 6: Final answer
    x = 329,478.74

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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.