Home / 1,107,641.11-1,528,829.11-721,418.93

Finding the Fourth Proportional to 1,107,641.11, 1,528,829.11 and 721,418.93

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Solution

The fourth proportional to 1,107,641.11, 1,528,829.11 and 721,418.93 is: 995,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,641.11 : 1,528,829.11 = 721,418.93 : x
  2. Step 2: Convert to fraction form
    1,107,641.11/1,528,829.11 = 721,418.93/x
  3. Step 3: Cross multiply
    1,107,641.11x = 1,528,829.11 × 721,418.93
  4. Step 4: Simplify right side
    1,107,641.11x = 1,102,926,260,689.05
  5. Step 5: Solve for x
    x = 1,102,926,260,689.05/1,107,641.11
  6. Step 6: Final answer
    x = 995,743.34

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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.