Home / 752,469.88-1,038,421.10-412,969.72

Finding the Fourth Proportional to 752,469.88, 1,038,421.10 and 412,969.72

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Solution

The fourth proportional to 752,469.88, 1,038,421.10 and 412,969.72 is: 569,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,469.88 : 1,038,421.10 = 412,969.72 : x
  2. Step 2: Convert to fraction form
    752,469.88/1,038,421.10 = 412,969.72/x
  3. Step 3: Cross multiply
    752,469.88x = 1,038,421.10 × 412,969.72
  4. Step 4: Simplify right side
    752,469.88x = 428,836,470,909.09
  5. Step 5: Solve for x
    x = 428,836,470,909.09/752,469.88
  6. Step 6: Final answer
    x = 569,905.16

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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.