Home / 1,040,173.40-1,560,260.10-919,904.60

Finding the Fourth Proportional to 1,040,173.40, 1,560,260.10 and 919,904.60

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Solution

The fourth proportional to 1,040,173.40, 1,560,260.10 and 919,904.60 is: 1,379,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,173.40 : 1,560,260.10 = 919,904.60 : x
  2. Step 2: Convert to fraction form
    1,040,173.40/1,560,260.10 = 919,904.60/x
  3. Step 3: Cross multiply
    1,040,173.40x = 1,560,260.10 × 919,904.60
  4. Step 4: Simplify right side
    1,040,173.40x = 1,435,290,443,186.46
  5. Step 5: Solve for x
    x = 1,435,290,443,186.46/1,040,173.40
  6. Step 6: Final answer
    x = 1,379,856.90

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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.