Home / 1,425,396.72-2,138,077.23-345,918.21

Finding the Fourth Proportional to 1,425,396.72, 2,138,077.23 and 345,918.21

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Solution

The fourth proportional to 1,425,396.72, 2,138,077.23 and 345,918.21 is: 518,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,396.72 : 2,138,077.23 = 345,918.21 : x
  2. Step 2: Convert to fraction form
    1,425,396.72/2,138,077.23 = 345,918.21/x
  3. Step 3: Cross multiply
    1,425,396.72x = 2,138,077.23 × 345,918.21
  4. Step 4: Simplify right side
    1,425,396.72x = 739,599,856,261.15
  5. Step 5: Solve for x
    x = 739,599,856,261.15/1,425,396.72
  6. Step 6: Final answer
    x = 518,872.99

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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.