Home / 921,959.60-1,269,409.01-783,866.96

Finding the Fourth Proportional to 921,959.60, 1,269,409.01 and 783,866.96

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Solution

The fourth proportional to 921,959.60, 1,269,409.01 and 783,866.96 is: 1,079,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,959.60 : 1,269,409.01 = 783,866.96 : x
  2. Step 2: Convert to fraction form
    921,959.60/1,269,409.01 = 783,866.96/x
  3. Step 3: Cross multiply
    921,959.60x = 1,269,409.01 × 783,866.96
  4. Step 4: Simplify right side
    921,959.60x = 995,047,771,398.93
  5. Step 5: Solve for x
    x = 995,047,771,398.93/921,959.60
  6. Step 6: Final answer
    x = 1,079,274.82

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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.