Home / 1,345,234.88-1,855,374.39-861,845.02

Finding the Fourth Proportional to 1,345,234.88, 1,855,374.39 and 861,845.02

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Solution

The fourth proportional to 1,345,234.88, 1,855,374.39 and 861,845.02 is: 1,188,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,234.88 : 1,855,374.39 = 861,845.02 : x
  2. Step 2: Convert to fraction form
    1,345,234.88/1,855,374.39 = 861,845.02/x
  3. Step 3: Cross multiply
    1,345,234.88x = 1,855,374.39 × 861,845.02
  4. Step 4: Simplify right side
    1,345,234.88x = 1,599,045,173,618.60
  5. Step 5: Solve for x
    x = 1,599,045,173,618.60/1,345,234.88
  6. Step 6: Final answer
    x = 1,188,673.59

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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.