Home / 420,234.48-579,900.06-238,920.84

Finding the Fourth Proportional to 420,234.48, 579,900.06 and 238,920.84

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Solution

The fourth proportional to 420,234.48, 579,900.06 and 238,920.84 is: 329,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,234.48 : 579,900.06 = 238,920.84 : x
  2. Step 2: Convert to fraction form
    420,234.48/579,900.06 = 238,920.84/x
  3. Step 3: Cross multiply
    420,234.48x = 579,900.06 × 238,920.84
  4. Step 4: Simplify right side
    420,234.48x = 138,550,209,451.25
  5. Step 5: Solve for x
    x = 138,550,209,451.25/420,234.48
  6. Step 6: Final answer
    x = 329,697.39

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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.