Home / 831,016.49-1,247,085.62-325,514.77

Finding the Fourth Proportional to 831,016.49, 1,247,085.62 and 325,514.77

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Solution

The fourth proportional to 831,016.49, 1,247,085.62 and 325,514.77 is: 488,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,016.49 : 1,247,085.62 = 325,514.77 : x
  2. Step 2: Convert to fraction form
    831,016.49/1,247,085.62 = 325,514.77/x
  3. Step 3: Cross multiply
    831,016.49x = 1,247,085.62 × 325,514.77
  4. Step 4: Simplify right side
    831,016.49x = 405,944,788,764.61
  5. Step 5: Solve for x
    x = 405,944,788,764.61/831,016.49
  6. Step 6: Final answer
    x = 488,491.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.