Home / 813,660.68-1,220,573.05-214,663.25

Finding the Fourth Proportional to 813,660.68, 1,220,573.05 and 214,663.25

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Solution

The fourth proportional to 813,660.68, 1,220,573.05 and 214,663.25 is: 322,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,660.68 : 1,220,573.05 = 214,663.25 : x
  2. Step 2: Convert to fraction form
    813,660.68/1,220,573.05 = 214,663.25/x
  3. Step 3: Cross multiply
    813,660.68x = 1,220,573.05 × 214,663.25
  4. Step 4: Simplify right side
    813,660.68x = 262,012,180,290.19
  5. Step 5: Solve for x
    x = 262,012,180,290.19/813,660.68
  6. Step 6: Final answer
    x = 322,016.52

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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.