Home / 780,355.80-1,170,627.50-274,812.30

Finding the Fourth Proportional to 780,355.80, 1,170,627.50 and 274,812.30

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Solution

The fourth proportional to 780,355.80, 1,170,627.50 and 274,812.30 is: 412,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,355.80 : 1,170,627.50 = 274,812.30 : x
  2. Step 2: Convert to fraction form
    780,355.80/1,170,627.50 = 274,812.30/x
  3. Step 3: Cross multiply
    780,355.80x = 1,170,627.50 × 274,812.30
  4. Step 4: Simplify right side
    780,355.80x = 321,702,835,718.25
  5. Step 5: Solve for x
    x = 321,702,835,718.25/780,355.80
  6. Step 6: Final answer
    x = 412,251.48

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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.