Home / 1,078,760.72-1,489,249.51-788,045.85

Finding the Fourth Proportional to 1,078,760.72, 1,489,249.51 and 788,045.85

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Solution

The fourth proportional to 1,078,760.72, 1,489,249.51 and 788,045.85 is: 1,087,912.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,760.72 : 1,489,249.51 = 788,045.85 : x
  2. Step 2: Convert to fraction form
    1,078,760.72/1,489,249.51 = 788,045.85/x
  3. Step 3: Cross multiply
    1,078,760.72x = 1,489,249.51 × 788,045.85
  4. Step 4: Simplify right side
    1,078,760.72x = 1,173,596,893,999.92
  5. Step 5: Solve for x
    x = 1,173,596,893,999.92/1,078,760.72
  6. Step 6: Final answer
    x = 1,087,912.15

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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.