Home / 1,230,971.30-1,699,023.83-721,837.70

Finding the Fourth Proportional to 1,230,971.30, 1,699,023.83 and 721,837.70

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Solution

The fourth proportional to 1,230,971.30, 1,699,023.83 and 721,837.70 is: 996,302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,971.30 : 1,699,023.83 = 721,837.70 : x
  2. Step 2: Convert to fraction form
    1,230,971.30/1,699,023.83 = 721,837.70/x
  3. Step 3: Cross multiply
    1,230,971.30x = 1,699,023.83 × 721,837.70
  4. Step 4: Simplify right side
    1,230,971.30x = 1,226,419,447,959.42
  5. Step 5: Solve for x
    x = 1,226,419,447,959.42/1,230,971.30
  6. Step 6: Final answer
    x = 996,302.23

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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.