Home / 919,822.64-1,379,734.33-413,792.56

Finding the Fourth Proportional to 919,822.64, 1,379,734.33 and 413,792.56

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Solution

The fourth proportional to 919,822.64, 1,379,734.33 and 413,792.56 is: 620,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,822.64 : 1,379,734.33 = 413,792.56 : x
  2. Step 2: Convert to fraction form
    919,822.64/1,379,734.33 = 413,792.56/x
  3. Step 3: Cross multiply
    919,822.64x = 1,379,734.33 × 413,792.56
  4. Step 4: Simplify right side
    919,822.64x = 570,923,800,530.59
  5. Step 5: Solve for x
    x = 570,923,800,530.59/919,822.64
  6. Step 6: Final answer
    x = 620,689.01

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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.