Home / 1,231,629.48-1,699,498.80-687,795.48

Finding the Fourth Proportional to 1,231,629.48, 1,699,498.80 and 687,795.48

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Solution

The fourth proportional to 1,231,629.48, 1,699,498.80 and 687,795.48 is: 949,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,629.48 : 1,699,498.80 = 687,795.48 : x
  2. Step 2: Convert to fraction form
    1,231,629.48/1,699,498.80 = 687,795.48/x
  3. Step 3: Cross multiply
    1,231,629.48x = 1,699,498.80 × 687,795.48
  4. Step 4: Simplify right side
    1,231,629.48x = 1,168,907,592,905.42
  5. Step 5: Solve for x
    x = 1,168,907,592,905.42/1,231,629.48
  6. Step 6: Final answer
    x = 949,074.06

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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.