Home / 1,190,609.37-1,786,160.10-391,938.84

Finding the Fourth Proportional to 1,190,609.37, 1,786,160.10 and 391,938.84

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Solution

The fourth proportional to 1,190,609.37, 1,786,160.10 and 391,938.84 is: 587,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,609.37 : 1,786,160.10 = 391,938.84 : x
  2. Step 2: Convert to fraction form
    1,190,609.37/1,786,160.10 = 391,938.84/x
  3. Step 3: Cross multiply
    1,190,609.37x = 1,786,160.10 × 391,938.84
  4. Step 4: Simplify right side
    1,190,609.37x = 700,065,517,648.28
  5. Step 5: Solve for x
    x = 700,065,517,648.28/1,190,609.37
  6. Step 6: Final answer
    x = 587,989.26

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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.