Home / 1,642,574.10-2,460,425.64-1,320,989.42

Finding the Fourth Proportional to 1,642,574.10, 2,460,425.64 and 1,320,989.42

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Solution

The fourth proportional to 1,642,574.10, 2,460,425.64 and 1,320,989.42 is: 1,978,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,574.10 : 2,460,425.64 = 1,320,989.42 : x
  2. Step 2: Convert to fraction form
    1,642,574.10/2,460,425.64 = 1,320,989.42/x
  3. Step 3: Cross multiply
    1,642,574.10x = 2,460,425.64 × 1,320,989.42
  4. Step 4: Simplify right side
    1,642,574.10x = 3,250,196,239,136.73
  5. Step 5: Solve for x
    x = 3,250,196,239,136.73/1,642,574.10
  6. Step 6: Final answer
    x = 1,978,721.23

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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.