Home / 1,230,992.28-1,699,052.74-721,858.68

Finding the Fourth Proportional to 1,230,992.28, 1,699,052.74 and 721,858.68

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Solution

The fourth proportional to 1,230,992.28, 1,699,052.74 and 721,858.68 is: 996,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,992.28 : 1,699,052.74 = 721,858.68 : x
  2. Step 2: Convert to fraction form
    1,230,992.28/1,699,052.74 = 721,858.68/x
  3. Step 3: Cross multiply
    1,230,992.28x = 1,699,052.74 × 721,858.68
  4. Step 4: Simplify right side
    1,230,992.28x = 1,226,475,968,146.78
  5. Step 5: Solve for x
    x = 1,226,475,968,146.78/1,230,992.28
  6. Step 6: Final answer
    x = 996,331.16

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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.