Home / 1,206,406.89-1,665,487.86-930,161.40

Finding the Fourth Proportional to 1,206,406.89, 1,665,487.86 and 930,161.40

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Solution

The fourth proportional to 1,206,406.89, 1,665,487.86 and 930,161.40 is: 1,284,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,406.89 : 1,665,487.86 = 930,161.40 : x
  2. Step 2: Convert to fraction form
    1,206,406.89/1,665,487.86 = 930,161.40/x
  3. Step 3: Cross multiply
    1,206,406.89x = 1,665,487.86 × 930,161.40
  4. Step 4: Simplify right side
    1,206,406.89x = 1,549,172,519,540.60
  5. Step 5: Solve for x
    x = 1,549,172,519,540.60/1,206,406.89
  6. Step 6: Final answer
    x = 1,284,121.08

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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.