Home / 786,092.88-1,179,388.53-280,643.01

Finding the Fourth Proportional to 786,092.88, 1,179,388.53 and 280,643.01

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Solution

The fourth proportional to 786,092.88, 1,179,388.53 and 280,643.01 is: 421,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,092.88 : 1,179,388.53 = 280,643.01 : x
  2. Step 2: Convert to fraction form
    786,092.88/1,179,388.53 = 280,643.01/x
  3. Step 3: Cross multiply
    786,092.88x = 1,179,388.53 × 280,643.01
  4. Step 4: Simplify right side
    786,092.88x = 330,987,147,018.68
  5. Step 5: Solve for x
    x = 330,987,147,018.68/786,092.88
  6. Step 6: Final answer
    x = 421,053.49

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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.