Home / 984,190.80-1,475,364.60-770,840.40

Finding the Fourth Proportional to 984,190.80, 1,475,364.60 and 770,840.40

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Solution

The fourth proportional to 984,190.80, 1,475,364.60 and 770,840.40 is: 1,155,538.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,190.80 : 1,475,364.60 = 770,840.40 : x
  2. Step 2: Convert to fraction form
    984,190.80/1,475,364.60 = 770,840.40/x
  3. Step 3: Cross multiply
    984,190.80x = 1,475,364.60 × 770,840.40
  4. Step 4: Simplify right side
    984,190.80x = 1,137,270,638,409.84
  5. Step 5: Solve for x
    x = 1,137,270,638,409.84/984,190.80
  6. Step 6: Final answer
    x = 1,155,538.78

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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.