Home / 1,152,178.98-1,589,563.53-721,709.70

Finding the Fourth Proportional to 1,152,178.98, 1,589,563.53 and 721,709.70

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Solution

The fourth proportional to 1,152,178.98, 1,589,563.53 and 721,709.70 is: 995,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,178.98 : 1,589,563.53 = 721,709.70 : x
  2. Step 2: Convert to fraction form
    1,152,178.98/1,589,563.53 = 721,709.70/x
  3. Step 3: Cross multiply
    1,152,178.98x = 1,589,563.53 × 721,709.70
  4. Step 4: Simplify right side
    1,152,178.98x = 1,147,203,418,367.24
  5. Step 5: Solve for x
    x = 1,147,203,418,367.24/1,152,178.98
  6. Step 6: Final answer
    x = 995,681.61

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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.