Home / 1,259,930.72-1,889,194.98-747,803.96

Finding the Fourth Proportional to 1,259,930.72, 1,889,194.98 and 747,803.96

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Solution

The fourth proportional to 1,259,930.72, 1,889,194.98 and 747,803.96 is: 1,121,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,930.72 : 1,889,194.98 = 747,803.96 : x
  2. Step 2: Convert to fraction form
    1,259,930.72/1,889,194.98 = 747,803.96/x
  3. Step 3: Cross multiply
    1,259,930.72x = 1,889,194.98 × 747,803.96
  4. Step 4: Simplify right side
    1,259,930.72x = 1,412,747,487,256.12
  5. Step 5: Solve for x
    x = 1,412,747,487,256.12/1,259,930.72
  6. Step 6: Final answer
    x = 1,121,289.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.