Home / 1,131,840.83-1,561,148.88-768,633.59

Finding the Fourth Proportional to 1,131,840.83, 1,561,148.88 and 768,633.59

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Solution

The fourth proportional to 1,131,840.83, 1,561,148.88 and 768,633.59 is: 1,060,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,840.83 : 1,561,148.88 = 768,633.59 : x
  2. Step 2: Convert to fraction form
    1,131,840.83/1,561,148.88 = 768,633.59/x
  3. Step 3: Cross multiply
    1,131,840.83x = 1,561,148.88 × 768,633.59
  4. Step 4: Simplify right side
    1,131,840.83x = 1,199,951,460,353.13
  5. Step 5: Solve for x
    x = 1,199,951,460,353.13/1,131,840.83
  6. Step 6: Final answer
    x = 1,060,176.87

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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.