Home / 770,328.83-1,155,766.73-343,825.83

Finding the Fourth Proportional to 770,328.83, 1,155,766.73 and 343,825.83

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Solution

The fourth proportional to 770,328.83, 1,155,766.73 and 343,825.83 is: 515,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,328.83 : 1,155,766.73 = 343,825.83 : x
  2. Step 2: Convert to fraction form
    770,328.83/1,155,766.73 = 343,825.83/x
  3. Step 3: Cross multiply
    770,328.83x = 1,155,766.73 × 343,825.83
  4. Step 4: Simplify right side
    770,328.83x = 397,382,453,509.51
  5. Step 5: Solve for x
    x = 397,382,453,509.51/770,328.83
  6. Step 6: Final answer
    x = 515,860.81

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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.