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Finding the Fourth Proportional to 800,642.40, 1,104,859.02 and 456,589.07

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Solution

The fourth proportional to 800,642.40, 1,104,859.02 and 456,589.07 is: 630,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,642.40 : 1,104,859.02 = 456,589.07 : x
  2. Step 2: Convert to fraction form
    800,642.40/1,104,859.02 = 456,589.07/x
  3. Step 3: Cross multiply
    800,642.40x = 1,104,859.02 × 456,589.07
  4. Step 4: Simplify right side
    800,642.40x = 504,466,546,898.62
  5. Step 5: Solve for x
    x = 504,466,546,898.62/800,642.40
  6. Step 6: Final answer
    x = 630,077.23

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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.