Home / 813,542.54-1,220,175.05-214,509.56

Finding the Fourth Proportional to 813,542.54, 1,220,175.05 and 214,509.56

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Solution

The fourth proportional to 813,542.54, 1,220,175.05 and 214,509.56 is: 321,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,542.54 : 1,220,175.05 = 214,509.56 : x
  2. Step 2: Convert to fraction form
    813,542.54/1,220,175.05 = 214,509.56/x
  3. Step 3: Cross multiply
    813,542.54x = 1,220,175.05 × 214,509.56
  4. Step 4: Simplify right side
    813,542.54x = 261,739,205,925.06
  5. Step 5: Solve for x
    x = 261,739,205,925.06/813,542.54
  6. Step 6: Final answer
    x = 321,727.75

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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.