Home / 1,259,847.60-1,889,771.40-628,679.40

Finding the Fourth Proportional to 1,259,847.60, 1,889,771.40 and 628,679.40

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Solution

The fourth proportional to 1,259,847.60, 1,889,771.40 and 628,679.40 is: 943,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,847.60 : 1,889,771.40 = 628,679.40 : x
  2. Step 2: Convert to fraction form
    1,259,847.60/1,889,771.40 = 628,679.40/x
  3. Step 3: Cross multiply
    1,259,847.60x = 1,889,771.40 × 628,679.40
  4. Step 4: Simplify right side
    1,259,847.60x = 1,188,060,349,889.16
  5. Step 5: Solve for x
    x = 1,188,060,349,889.16/1,259,847.60
  6. Step 6: Final answer
    x = 943,019.10

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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.