Home / 723,328.45-1,085,037.72-190,850.03

Finding the Fourth Proportional to 723,328.45, 1,085,037.72 and 190,850.03

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Solution

The fourth proportional to 723,328.45, 1,085,037.72 and 190,850.03 is: 286,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,328.45 : 1,085,037.72 = 190,850.03 : x
  2. Step 2: Convert to fraction form
    723,328.45/1,085,037.72 = 190,850.03/x
  3. Step 3: Cross multiply
    723,328.45x = 1,085,037.72 × 190,850.03
  4. Step 4: Simplify right side
    723,328.45x = 207,079,481,413.13
  5. Step 5: Solve for x
    x = 207,079,481,413.13/723,328.45
  6. Step 6: Final answer
    x = 286,286.93

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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.