Home / 780,245.72-1,170,514.56-247,900.76

Finding the Fourth Proportional to 780,245.72, 1,170,514.56 and 247,900.76

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Solution

The fourth proportional to 780,245.72, 1,170,514.56 and 247,900.76 is: 371,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,245.72 : 1,170,514.56 = 247,900.76 : x
  2. Step 2: Convert to fraction form
    780,245.72/1,170,514.56 = 247,900.76/x
  3. Step 3: Cross multiply
    780,245.72x = 1,170,514.56 × 247,900.76
  4. Step 4: Simplify right side
    780,245.72x = 290,171,449,015.07
  5. Step 5: Solve for x
    x = 290,171,449,015.07/780,245.72
  6. Step 6: Final answer
    x = 371,897.52

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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.