Home / 557,578.48-769,496.38-315,863.04

Finding the Fourth Proportional to 557,578.48, 769,496.38 and 315,863.04

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Solution

The fourth proportional to 557,578.48, 769,496.38 and 315,863.04 is: 435,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,578.48 : 769,496.38 = 315,863.04 : x
  2. Step 2: Convert to fraction form
    557,578.48/769,496.38 = 315,863.04/x
  3. Step 3: Cross multiply
    557,578.48x = 769,496.38 × 315,863.04
  4. Step 4: Simplify right side
    557,578.48x = 243,055,465,855.80
  5. Step 5: Solve for x
    x = 243,055,465,855.80/557,578.48
  6. Step 6: Final answer
    x = 435,912.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.