Home / 768,039.60-1,059,954.24-423,942.96

Finding the Fourth Proportional to 768,039.60, 1,059,954.24 and 423,942.96

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Solution

The fourth proportional to 768,039.60, 1,059,954.24 and 423,942.96 is: 585,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,039.60 : 1,059,954.24 = 423,942.96 : x
  2. Step 2: Convert to fraction form
    768,039.60/1,059,954.24 = 423,942.96/x
  3. Step 3: Cross multiply
    768,039.60x = 1,059,954.24 × 423,942.96
  4. Step 4: Simplify right side
    768,039.60x = 449,360,137,970.15
  5. Step 5: Solve for x
    x = 449,360,137,970.15/768,039.60
  6. Step 6: Final answer
    x = 585,074.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.