Home / 420,093.32-579,705.66-238,780.04

Finding the Fourth Proportional to 420,093.32, 579,705.66 and 238,780.04

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Solution

The fourth proportional to 420,093.32, 579,705.66 and 238,780.04 is: 329,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,093.32 : 579,705.66 = 238,780.04 : x
  2. Step 2: Convert to fraction form
    420,093.32/579,705.66 = 238,780.04/x
  3. Step 3: Cross multiply
    420,093.32x = 579,705.66 × 238,780.04
  4. Step 4: Simplify right side
    420,093.32x = 138,422,140,683.03
  5. Step 5: Solve for x
    x = 138,422,140,683.03/420,093.32
  6. Step 6: Final answer
    x = 329,503.31

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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.