Home / 1,078,737.31-1,489,217.12-788,022.47

Finding the Fourth Proportional to 1,078,737.31, 1,489,217.12 and 788,022.47

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Solution

The fourth proportional to 1,078,737.31, 1,489,217.12 and 788,022.47 is: 1,087,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,737.31 : 1,489,217.12 = 788,022.47 : x
  2. Step 2: Convert to fraction form
    1,078,737.31/1,489,217.12 = 788,022.47/x
  3. Step 3: Cross multiply
    1,078,737.31x = 1,489,217.12 × 788,022.47
  4. Step 4: Simplify right side
    1,078,737.31x = 1,173,536,553,268.69
  5. Step 5: Solve for x
    x = 1,173,536,553,268.69/1,078,737.31
  6. Step 6: Final answer
    x = 1,087,879.82

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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.