Home / 1,285,004.20-1,925,805.30-684,672.70

Finding the Fourth Proportional to 1,285,004.20, 1,925,805.30 and 684,672.70

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Solution

The fourth proportional to 1,285,004.20, 1,925,805.30 and 684,672.70 is: 1,026,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,004.20 : 1,925,805.30 = 684,672.70 : x
  2. Step 2: Convert to fraction form
    1,285,004.20/1,925,805.30 = 684,672.70/x
  3. Step 3: Cross multiply
    1,285,004.20x = 1,925,805.30 × 684,672.70
  4. Step 4: Simplify right side
    1,285,004.20x = 1,318,546,314,425.31
  5. Step 5: Solve for x
    x = 1,318,546,314,425.31/1,285,004.20
  6. Step 6: Final answer
    x = 1,026,102.73

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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.