Home / 1,288,915.92-1,934,261.42-447,467.67

Finding the Fourth Proportional to 1,288,915.92, 1,934,261.42 and 447,467.67

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Solution

The fourth proportional to 1,288,915.92, 1,934,261.42 and 447,467.67 is: 671,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,915.92 : 1,934,261.42 = 447,467.67 : x
  2. Step 2: Convert to fraction form
    1,288,915.92/1,934,261.42 = 447,467.67/x
  3. Step 3: Cross multiply
    1,288,915.92x = 1,934,261.42 × 447,467.67
  4. Step 4: Simplify right side
    1,288,915.92x = 865,519,448,540.95
  5. Step 5: Solve for x
    x = 865,519,448,540.95/1,288,915.92
  6. Step 6: Final answer
    x = 671,509.63

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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.