Home / 685,687.41-1,024,361.15-443,830.95

Finding the Fourth Proportional to 685,687.41, 1,024,361.15 and 443,830.95

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Solution

The fourth proportional to 685,687.41, 1,024,361.15 and 443,830.95 is: 663,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,687.41 : 1,024,361.15 = 443,830.95 : x
  2. Step 2: Convert to fraction form
    685,687.41/1,024,361.15 = 443,830.95/x
  3. Step 3: Cross multiply
    685,687.41x = 1,024,361.15 × 443,830.95
  4. Step 4: Simplify right side
    685,687.41x = 454,643,180,128.44
  5. Step 5: Solve for x
    x = 454,643,180,128.44/685,687.41
  6. Step 6: Final answer
    x = 663,047.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.