Home / 780,460.60-1,170,672.60-359,736.48

Finding the Fourth Proportional to 780,460.60, 1,170,672.60 and 359,736.48

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Solution

The fourth proportional to 780,460.60, 1,170,672.60 and 359,736.48 is: 539,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,460.60 : 1,170,672.60 = 359,736.48 : x
  2. Step 2: Convert to fraction form
    780,460.60/1,170,672.60 = 359,736.48/x
  3. Step 3: Cross multiply
    780,460.60x = 1,170,672.60 × 359,736.48
  4. Step 4: Simplify right side
    780,460.60x = 421,133,640,356.45
  5. Step 5: Solve for x
    x = 421,133,640,356.45/780,460.60
  6. Step 6: Final answer
    x = 539,596.29

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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.