Home / 1,345,236.78-1,855,376.97-861,846.90

Finding the Fourth Proportional to 1,345,236.78, 1,855,376.97 and 861,846.90

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Solution

The fourth proportional to 1,345,236.78, 1,855,376.97 and 861,846.90 is: 1,188,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,236.78 : 1,855,376.97 = 861,846.90 : x
  2. Step 2: Convert to fraction form
    1,345,236.78/1,855,376.97 = 861,846.90/x
  3. Step 3: Cross multiply
    1,345,236.78x = 1,855,376.97 × 861,846.90
  4. Step 4: Simplify right side
    1,345,236.78x = 1,599,050,889,925.89
  5. Step 5: Solve for x
    x = 1,599,050,889,925.89/1,345,236.78
  6. Step 6: Final answer
    x = 1,188,676.16

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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.