Home / 1,397,662.79-1,928,712.53-854,708.45

Finding the Fourth Proportional to 1,397,662.79, 1,928,712.53 and 854,708.45

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Solution

The fourth proportional to 1,397,662.79, 1,928,712.53 and 854,708.45 is: 1,179,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,662.79 : 1,928,712.53 = 854,708.45 : x
  2. Step 2: Convert to fraction form
    1,397,662.79/1,928,712.53 = 854,708.45/x
  3. Step 3: Cross multiply
    1,397,662.79x = 1,928,712.53 × 854,708.45
  4. Step 4: Simplify right side
    1,397,662.79x = 1,648,486,889,505.09
  5. Step 5: Solve for x
    x = 1,648,486,889,505.09/1,397,662.79
  6. Step 6: Final answer
    x = 1,179,459.67

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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.