Home / 816,231.72-1,126,418.92-453,670.86

Finding the Fourth Proportional to 816,231.72, 1,126,418.92 and 453,670.86

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Solution

The fourth proportional to 816,231.72, 1,126,418.92 and 453,670.86 is: 626,076.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,231.72 : 1,126,418.92 = 453,670.86 : x
  2. Step 2: Convert to fraction form
    816,231.72/1,126,418.92 = 453,670.86/x
  3. Step 3: Cross multiply
    816,231.72x = 1,126,418.92 × 453,670.86
  4. Step 4: Simplify right side
    816,231.72x = 511,023,440,156.67
  5. Step 5: Solve for x
    x = 511,023,440,156.67/816,231.72
  6. Step 6: Final answer
    x = 626,076.43

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1.5x scale

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.