Home / 844,720.56-1,165,422.24-640,558.80

Finding the Fourth Proportional to 844,720.56, 1,165,422.24 and 640,558.80

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Solution

The fourth proportional to 844,720.56, 1,165,422.24 and 640,558.80 is: 883,749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,720.56 : 1,165,422.24 = 640,558.80 : x
  2. Step 2: Convert to fraction form
    844,720.56/1,165,422.24 = 640,558.80/x
  3. Step 3: Cross multiply
    844,720.56x = 1,165,422.24 × 640,558.80
  4. Step 4: Simplify right side
    844,720.56x = 746,521,471,547.71
  5. Step 5: Solve for x
    x = 746,521,471,547.71/844,720.56
  6. Step 6: Final answer
    x = 883,749.62

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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.