Home / 1,683,393.39-2,525,090.49-421,221.42

Finding the Fourth Proportional to 1,683,393.39, 2,525,090.49 and 421,221.42

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Solution

The fourth proportional to 1,683,393.39, 2,525,090.49 and 421,221.42 is: 631,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,393.39 : 2,525,090.49 = 421,221.42 : x
  2. Step 2: Convert to fraction form
    1,683,393.39/2,525,090.49 = 421,221.42/x
  3. Step 3: Cross multiply
    1,683,393.39x = 2,525,090.49 × 421,221.42
  4. Step 4: Simplify right side
    1,683,393.39x = 1,063,622,201,826.30
  5. Step 5: Solve for x
    x = 1,063,622,201,826.30/1,683,393.39
  6. Step 6: Final answer
    x = 631,832.23

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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.