Home / 816,521.86-1,126,736.36-453,923.64

Finding the Fourth Proportional to 816,521.86, 1,126,736.36 and 453,923.64

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Solution

The fourth proportional to 816,521.86, 1,126,736.36 and 453,923.64 is: 626,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,521.86 : 1,126,736.36 = 453,923.64 : x
  2. Step 2: Convert to fraction form
    816,521.86/1,126,736.36 = 453,923.64/x
  3. Step 3: Cross multiply
    816,521.86x = 1,126,736.36 × 453,923.64
  4. Step 4: Simplify right side
    816,521.86x = 511,452,269,851.55
  5. Step 5: Solve for x
    x = 511,452,269,851.55/816,521.86
  6. Step 6: Final answer
    x = 626,379.15

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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.