Home / 921,959.35-1,269,408.66-783,866.71

Finding the Fourth Proportional to 921,959.35, 1,269,408.66 and 783,866.71

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Solution

The fourth proportional to 921,959.35, 1,269,408.66 and 783,866.71 is: 1,079,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,959.35 : 1,269,408.66 = 783,866.71 : x
  2. Step 2: Convert to fraction form
    921,959.35/1,269,408.66 = 783,866.71/x
  3. Step 3: Cross multiply
    921,959.35x = 1,269,408.66 × 783,866.71
  4. Step 4: Simplify right side
    921,959.35x = 995,047,183,612.67
  5. Step 5: Solve for x
    x = 995,047,183,612.67/921,959.35
  6. Step 6: Final answer
    x = 1,079,274.47

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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.