Home / 557,531.08-835,829.70-388,555.72

Finding the Fourth Proportional to 557,531.08, 835,829.70 and 388,555.72

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Solution

The fourth proportional to 557,531.08, 835,829.70 and 388,555.72 is: 582,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,531.08 : 835,829.70 = 388,555.72 : x
  2. Step 2: Convert to fraction form
    557,531.08/835,829.70 = 388,555.72/x
  3. Step 3: Cross multiply
    557,531.08x = 835,829.70 × 388,555.72
  4. Step 4: Simplify right side
    557,531.08x = 324,766,410,880.88
  5. Step 5: Solve for x
    x = 324,766,410,880.88/557,531.08
  6. Step 6: Final answer
    x = 582,508.17

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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.