Home / 813,542.02-1,220,174.31-214,509.07

Finding the Fourth Proportional to 813,542.02, 1,220,174.31 and 214,509.07

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Solution

The fourth proportional to 813,542.02, 1,220,174.31 and 214,509.07 is: 321,727.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,542.02 : 1,220,174.31 = 214,509.07 : x
  2. Step 2: Convert to fraction form
    813,542.02/1,220,174.31 = 214,509.07/x
  3. Step 3: Cross multiply
    813,542.02x = 1,220,174.31 × 214,509.07
  4. Step 4: Simplify right side
    813,542.02x = 261,738,456,475.99
  5. Step 5: Solve for x
    x = 261,738,456,475.99/813,542.02
  6. Step 6: Final answer
    x = 321,727.03

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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.