Home / 767,821.60-1,151,721.60-347,096.80

Finding the Fourth Proportional to 767,821.60, 1,151,721.60 and 347,096.80

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Solution

The fourth proportional to 767,821.60, 1,151,721.60 and 347,096.80 is: 520,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,821.60 : 1,151,721.60 = 347,096.80 : x
  2. Step 2: Convert to fraction form
    767,821.60/1,151,721.60 = 347,096.80/x
  3. Step 3: Cross multiply
    767,821.60x = 1,151,721.60 × 347,096.80
  4. Step 4: Simplify right side
    767,821.60x = 399,758,881,850.88
  5. Step 5: Solve for x
    x = 399,758,881,850.88/767,821.60
  6. Step 6: Final answer
    x = 520,640.32

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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.