Home / 1,231,020.27-1,699,091.37-721,886.67

Finding the Fourth Proportional to 1,231,020.27, 1,699,091.37 and 721,886.67

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Solution

The fourth proportional to 1,231,020.27, 1,699,091.37 and 721,886.67 is: 996,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,020.27 : 1,699,091.37 = 721,886.67 : x
  2. Step 2: Convert to fraction form
    1,231,020.27/1,699,091.37 = 721,886.67/x
  3. Step 3: Cross multiply
    1,231,020.27x = 1,699,091.37 × 721,886.67
  4. Step 4: Simplify right side
    1,231,020.27x = 1,226,551,411,115.04
  5. Step 5: Solve for x
    x = 1,226,551,411,115.04/1,231,020.27
  6. Step 6: Final answer
    x = 996,369.79

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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.