Home / 1,186,986.90-1,781,245.80-654,889.80

Finding the Fourth Proportional to 1,186,986.90, 1,781,245.80 and 654,889.80

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Solution

The fourth proportional to 1,186,986.90, 1,781,245.80 and 654,889.80 is: 982,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,986.90 : 1,781,245.80 = 654,889.80 : x
  2. Step 2: Convert to fraction form
    1,186,986.90/1,781,245.80 = 654,889.80/x
  3. Step 3: Cross multiply
    1,186,986.90x = 1,781,245.80 × 654,889.80
  4. Step 4: Simplify right side
    1,186,986.90x = 1,166,519,705,712.84
  5. Step 5: Solve for x
    x = 1,166,519,705,712.84/1,186,986.90
  6. Step 6: Final answer
    x = 982,757.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.