Home / 1,438,256.88-1,984,906.69-826,623.16

Finding the Fourth Proportional to 1,438,256.88, 1,984,906.69 and 826,623.16

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Solution

The fourth proportional to 1,438,256.88, 1,984,906.69 and 826,623.16 is: 1,140,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,256.88 : 1,984,906.69 = 826,623.16 : x
  2. Step 2: Convert to fraction form
    1,438,256.88/1,984,906.69 = 826,623.16/x
  3. Step 3: Cross multiply
    1,438,256.88x = 1,984,906.69 × 826,623.16
  4. Step 4: Simplify right side
    1,438,256.88x = 1,640,769,833,364.12
  5. Step 5: Solve for x
    x = 1,640,769,833,364.12/1,438,256.88
  6. Step 6: Final answer
    x = 1,140,804.44

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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.