Home / 1,190,840.92-1,643,379.12-646,987.48

Finding the Fourth Proportional to 1,190,840.92, 1,643,379.12 and 646,987.48

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Solution

The fourth proportional to 1,190,840.92, 1,643,379.12 and 646,987.48 is: 892,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,840.92 : 1,643,379.12 = 646,987.48 : x
  2. Step 2: Convert to fraction form
    1,190,840.92/1,643,379.12 = 646,987.48/x
  3. Step 3: Cross multiply
    1,190,840.92x = 1,643,379.12 × 646,987.48
  4. Step 4: Simplify right side
    1,190,840.92x = 1,063,245,715,533.42
  5. Step 5: Solve for x
    x = 1,063,245,715,533.42/1,190,840.92
  6. Step 6: Final answer
    x = 892,852.86

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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.