Home / 1,345,865.90-1,856,825.94-862,697.46

Finding the Fourth Proportional to 1,345,865.90, 1,856,825.94 and 862,697.46

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Solution

The fourth proportional to 1,345,865.90, 1,856,825.94 and 862,697.46 is: 1,190,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,865.90 : 1,856,825.94 = 862,697.46 : x
  2. Step 2: Convert to fraction form
    1,345,865.90/1,856,825.94 = 862,697.46/x
  3. Step 3: Cross multiply
    1,345,865.90x = 1,856,825.94 × 862,697.46
  4. Step 4: Simplify right side
    1,345,865.90x = 1,601,879,022,100.11
  5. Step 5: Solve for x
    x = 1,601,879,022,100.11/1,345,865.90
  6. Step 6: Final answer
    x = 1,190,221.87

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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.