Home / 871,804.32-1,203,626.70-691,245.60

Finding the Fourth Proportional to 871,804.32, 1,203,626.70 and 691,245.60

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Solution

The fourth proportional to 871,804.32, 1,203,626.70 and 691,245.60 is: 954,344.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,804.32 : 1,203,626.70 = 691,245.60 : x
  2. Step 2: Convert to fraction form
    871,804.32/1,203,626.70 = 691,245.60/x
  3. Step 3: Cross multiply
    871,804.32x = 1,203,626.70 × 691,245.60
  4. Step 4: Simplify right side
    871,804.32x = 832,001,660,417.52
  5. Step 5: Solve for x
    x = 832,001,660,417.52/871,804.32
  6. Step 6: Final answer
    x = 954,344.50

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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.