Home / 1,121,415.23-1,547,542.64-691,523.39

Finding the Fourth Proportional to 1,121,415.23, 1,547,542.64 and 691,523.39

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Solution

The fourth proportional to 1,121,415.23, 1,547,542.64 and 691,523.39 is: 954,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,415.23 : 1,547,542.64 = 691,523.39 : x
  2. Step 2: Convert to fraction form
    1,121,415.23/1,547,542.64 = 691,523.39/x
  3. Step 3: Cross multiply
    1,121,415.23x = 1,547,542.64 × 691,523.39
  4. Step 4: Simplify right side
    1,121,415.23x = 1,070,161,921,387.02
  5. Step 5: Solve for x
    x = 1,070,161,921,387.02/1,121,415.23
  6. Step 6: Final answer
    x = 954,295.87

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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.