Home / 558,391.78-835,474.02-330,809.59

Finding the Fourth Proportional to 558,391.78, 835,474.02 and 330,809.59

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Solution

The fourth proportional to 558,391.78, 835,474.02 and 330,809.59 is: 494,962.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,391.78 : 835,474.02 = 330,809.59 : x
  2. Step 2: Convert to fraction form
    558,391.78/835,474.02 = 330,809.59/x
  3. Step 3: Cross multiply
    558,391.78x = 835,474.02 × 330,809.59
  4. Step 4: Simplify right side
    558,391.78x = 276,382,821,344.14
  5. Step 5: Solve for x
    x = 276,382,821,344.14/558,391.78
  6. Step 6: Final answer
    x = 494,962.19

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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.