Home / 1,381,505.68-1,906,435.72-769,658.16

Finding the Fourth Proportional to 1,381,505.68, 1,906,435.72 and 769,658.16

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Solution

The fourth proportional to 1,381,505.68, 1,906,435.72 and 769,658.16 is: 1,062,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,505.68 : 1,906,435.72 = 769,658.16 : x
  2. Step 2: Convert to fraction form
    1,381,505.68/1,906,435.72 = 769,658.16/x
  3. Step 3: Cross multiply
    1,381,505.68x = 1,906,435.72 × 769,658.16
  4. Step 4: Simplify right side
    1,381,505.68x = 1,467,303,808,413.48
  5. Step 5: Solve for x
    x = 1,467,303,808,413.48/1,381,505.68
  6. Step 6: Final answer
    x = 1,062,104.80

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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.