Home / 874,136.40-1,311,247.80-454,232.40

Finding the Fourth Proportional to 874,136.40, 1,311,247.80 and 454,232.40

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Solution

The fourth proportional to 874,136.40, 1,311,247.80 and 454,232.40 is: 681,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,136.40 : 1,311,247.80 = 454,232.40 : x
  2. Step 2: Convert to fraction form
    874,136.40/1,311,247.80 = 454,232.40/x
  3. Step 3: Cross multiply
    874,136.40x = 1,311,247.80 × 454,232.40
  4. Step 4: Simplify right side
    874,136.40x = 595,611,235,188.72
  5. Step 5: Solve for x
    x = 595,611,235,188.72/874,136.40
  6. Step 6: Final answer
    x = 681,371.05

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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.