Home / 1,285,872.89-1,925,025.60-858,348.30

Finding the Fourth Proportional to 1,285,872.89, 1,925,025.60 and 858,348.30

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Solution

The fourth proportional to 1,285,872.89, 1,925,025.60 and 858,348.30 is: 1,284,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,872.89 : 1,925,025.60 = 858,348.30 : x
  2. Step 2: Convert to fraction form
    1,285,872.89/1,925,025.60 = 858,348.30/x
  3. Step 3: Cross multiply
    1,285,872.89x = 1,925,025.60 × 858,348.30
  4. Step 4: Simplify right side
    1,285,872.89x = 1,652,342,443,290.59
  5. Step 5: Solve for x
    x = 1,652,342,443,290.59/1,285,872.89
  6. Step 6: Final answer
    x = 1,284,996.72

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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.