Home / 1,440,127.21-1,985,887.11-1,236,851.23

Finding the Fourth Proportional to 1,440,127.21, 1,985,887.11 and 1,236,851.23

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Solution

The fourth proportional to 1,440,127.21, 1,985,887.11 and 1,236,851.23 is: 1,705,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,127.21 : 1,985,887.11 = 1,236,851.23 : x
  2. Step 2: Convert to fraction form
    1,440,127.21/1,985,887.11 = 1,236,851.23/x
  3. Step 3: Cross multiply
    1,440,127.21x = 1,985,887.11 × 1,236,851.23
  4. Step 4: Simplify right side
    1,440,127.21x = 2,456,246,914,644.65
  5. Step 5: Solve for x
    x = 2,456,246,914,644.65/1,440,127.21
  6. Step 6: Final answer
    x = 1,705,576.35

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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.