Home / 1,152,181.79-1,589,567.40-721,712.51

Finding the Fourth Proportional to 1,152,181.79, 1,589,567.40 and 721,712.51

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Solution

The fourth proportional to 1,152,181.79, 1,589,567.40 and 721,712.51 is: 995,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,181.79 : 1,589,567.40 = 721,712.51 : x
  2. Step 2: Convert to fraction form
    1,152,181.79/1,589,567.40 = 721,712.51/x
  3. Step 3: Cross multiply
    1,152,181.79x = 1,589,567.40 × 721,712.51
  4. Step 4: Simplify right side
    1,152,181.79x = 1,147,210,682,042.09
  5. Step 5: Solve for x
    x = 1,147,210,682,042.09/1,152,181.79
  6. Step 6: Final answer
    x = 995,685.48

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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.