Home / 1,294,009.25-1,785,865.64-777,930.21

Finding the Fourth Proportional to 1,294,009.25, 1,785,865.64 and 777,930.21

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Solution

The fourth proportional to 1,294,009.25, 1,785,865.64 and 777,930.21 is: 1,073,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,009.25 : 1,785,865.64 = 777,930.21 : x
  2. Step 2: Convert to fraction form
    1,294,009.25/1,785,865.64 = 777,930.21/x
  3. Step 3: Cross multiply
    1,294,009.25x = 1,785,865.64 × 777,930.21
  4. Step 4: Simplify right side
    1,294,009.25x = 1,389,278,828,467.33
  5. Step 5: Solve for x
    x = 1,389,278,828,467.33/1,294,009.25
  6. Step 6: Final answer
    x = 1,073,623.57

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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.