Home / 1,448,540.70-2,172,811.05-1,438,043.10

Finding the Fourth Proportional to 1,448,540.70, 2,172,811.05 and 1,438,043.10

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Solution

The fourth proportional to 1,448,540.70, 2,172,811.05 and 1,438,043.10 is: 2,157,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,540.70 : 2,172,811.05 = 1,438,043.10 : x
  2. Step 2: Convert to fraction form
    1,448,540.70/2,172,811.05 = 1,438,043.10/x
  3. Step 3: Cross multiply
    1,448,540.70x = 2,172,811.05 × 1,438,043.10
  4. Step 4: Simplify right side
    1,448,540.70x = 3,124,595,938,056.26
  5. Step 5: Solve for x
    x = 3,124,595,938,056.26/1,448,540.70
  6. Step 6: Final answer
    x = 2,157,064.65

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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.