Home / 861,682.60-1,292,715.80-262,690.36

Finding the Fourth Proportional to 861,682.60, 1,292,715.80 and 262,690.36

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Solution

The fourth proportional to 861,682.60, 1,292,715.80 and 262,690.36 is: 394,094.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,682.60 : 1,292,715.80 = 262,690.36 : x
  2. Step 2: Convert to fraction form
    861,682.60/1,292,715.80 = 262,690.36/x
  3. Step 3: Cross multiply
    861,682.60x = 1,292,715.80 × 262,690.36
  4. Step 4: Simplify right side
    861,682.60x = 339,583,978,879.69
  5. Step 5: Solve for x
    x = 339,583,978,879.69/861,682.60
  6. Step 6: Final answer
    x = 394,094.04

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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.