Home / 2,115,440.34-2,921,711.27-1,425,922.98

Finding the Fourth Proportional to 2,115,440.34, 2,921,711.27 and 1,425,922.98

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Solution

The fourth proportional to 2,115,440.34, 2,921,711.27 and 1,425,922.98 is: 1,969,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,440.34 : 2,921,711.27 = 1,425,922.98 : x
  2. Step 2: Convert to fraction form
    2,115,440.34/2,921,711.27 = 1,425,922.98/x
  3. Step 3: Cross multiply
    2,115,440.34x = 2,921,711.27 × 1,425,922.98
  4. Step 4: Simplify right side
    2,115,440.34x = 4,166,135,240,817.98
  5. Step 5: Solve for x
    x = 4,166,135,240,817.98/2,115,440.34
  6. Step 6: Final answer
    x = 1,969,393.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.