Home / 818,879.40-1,228,319.10-580,933.80

Finding the Fourth Proportional to 818,879.40, 1,228,319.10 and 580,933.80

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Solution

The fourth proportional to 818,879.40, 1,228,319.10 and 580,933.80 is: 871,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,879.40 : 1,228,319.10 = 580,933.80 : x
  2. Step 2: Convert to fraction form
    818,879.40/1,228,319.10 = 580,933.80/x
  3. Step 3: Cross multiply
    818,879.40x = 1,228,319.10 × 580,933.80
  4. Step 4: Simplify right side
    818,879.40x = 713,572,082,375.58
  5. Step 5: Solve for x
    x = 713,572,082,375.58/818,879.40
  6. Step 6: Final answer
    x = 871,400.70

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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.