Home / 1,272,977.27-1,756,278.65-721,633.83

Finding the Fourth Proportional to 1,272,977.27, 1,756,278.65 and 721,633.83

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Solution

The fourth proportional to 1,272,977.27, 1,756,278.65 and 721,633.83 is: 995,610.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,977.27 : 1,756,278.65 = 721,633.83 : x
  2. Step 2: Convert to fraction form
    1,272,977.27/1,756,278.65 = 721,633.83/x
  3. Step 3: Cross multiply
    1,272,977.27x = 1,756,278.65 × 721,633.83
  4. Step 4: Simplify right side
    1,272,977.27x = 1,267,390,088,746.73
  5. Step 5: Solve for x
    x = 1,267,390,088,746.73/1,272,977.27
  6. Step 6: Final answer
    x = 995,610.93

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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.