Home / 1,190,455.12-1,642,840.00-646,601.54

Finding the Fourth Proportional to 1,190,455.12, 1,642,840.00 and 646,601.54

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Solution

The fourth proportional to 1,190,455.12, 1,642,840.00 and 646,601.54 is: 892,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,455.12 : 1,642,840.00 = 646,601.54 : x
  2. Step 2: Convert to fraction form
    1,190,455.12/1,642,840.00 = 646,601.54/x
  3. Step 3: Cross multiply
    1,190,455.12x = 1,642,840.00 × 646,601.54
  4. Step 4: Simplify right side
    1,190,455.12x = 1,062,262,876,464.20
  5. Step 5: Solve for x
    x = 1,062,262,876,464.20/1,190,455.12
  6. Step 6: Final answer
    x = 892,316.61

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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.