Home / 748,865.64-1,123,578.99-388,811.82

Finding the Fourth Proportional to 748,865.64, 1,123,578.99 and 388,811.82

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Solution

The fourth proportional to 748,865.64, 1,123,578.99 and 388,811.82 is: 583,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865.64 : 1,123,578.99 = 388,811.82 : x
  2. Step 2: Convert to fraction form
    748,865.64/1,123,578.99 = 388,811.82/x
  3. Step 3: Cross multiply
    748,865.64x = 1,123,578.99 × 388,811.82
  4. Step 4: Simplify right side
    748,865.64x = 436,860,792,015.66
  5. Step 5: Solve for x
    x = 436,860,792,015.66/748,865.64
  6. Step 6: Final answer
    x = 583,363.38

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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.