Home / 668,954.16-1,003,584.42-289,938.60

Finding the Fourth Proportional to 668,954.16, 1,003,584.42 and 289,938.60

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Solution

The fourth proportional to 668,954.16, 1,003,584.42 and 289,938.60 is: 434,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,954.16 : 1,003,584.42 = 289,938.60 : x
  2. Step 2: Convert to fraction form
    668,954.16/1,003,584.42 = 289,938.60/x
  3. Step 3: Cross multiply
    668,954.16x = 1,003,584.42 × 289,938.60
  4. Step 4: Simplify right side
    668,954.16x = 290,977,861,716.61
  5. Step 5: Solve for x
    x = 290,977,861,716.61/668,954.16
  6. Step 6: Final answer
    x = 434,974.29

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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.