Home / 1,230,976.63-1,699,031.19-721,843.03

Finding the Fourth Proportional to 1,230,976.63, 1,699,031.19 and 721,843.03

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Solution

The fourth proportional to 1,230,976.63, 1,699,031.19 and 721,843.03 is: 996,309.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,976.63 : 1,699,031.19 = 721,843.03 : x
  2. Step 2: Convert to fraction form
    1,230,976.63/1,699,031.19 = 721,843.03/x
  3. Step 3: Cross multiply
    1,230,976.63x = 1,699,031.19 × 721,843.03
  4. Step 4: Simplify right side
    1,230,976.63x = 1,226,433,822,254.11
  5. Step 5: Solve for x
    x = 1,226,433,822,254.11/1,230,976.63
  6. Step 6: Final answer
    x = 996,309.59

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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.