Home / 816,566.01-1,126,879.40-449,019.86

Finding the Fourth Proportional to 816,566.01, 1,126,879.40 and 449,019.86

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Solution

The fourth proportional to 816,566.01, 1,126,879.40 and 449,019.86 is: 619,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,566.01 : 1,126,879.40 = 449,019.86 : x
  2. Step 2: Convert to fraction form
    816,566.01/1,126,879.40 = 449,019.86/x
  3. Step 3: Cross multiply
    816,566.01x = 1,126,879.40 × 449,019.86
  4. Step 4: Simplify right side
    816,566.01x = 505,991,222,545.39
  5. Step 5: Solve for x
    x = 505,991,222,545.39/816,566.01
  6. Step 6: Final answer
    x = 619,657.46

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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.