Home / 1,138,673.90-1,571,403.42-622,456.34

Finding the Fourth Proportional to 1,138,673.90, 1,571,403.42 and 622,456.34

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Solution

The fourth proportional to 1,138,673.90, 1,571,403.42 and 622,456.34 is: 859,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,673.90 : 1,571,403.42 = 622,456.34 : x
  2. Step 2: Convert to fraction form
    1,138,673.90/1,571,403.42 = 622,456.34/x
  3. Step 3: Cross multiply
    1,138,673.90x = 1,571,403.42 × 622,456.34
  4. Step 4: Simplify right side
    1,138,673.90x = 978,130,021,476.68
  5. Step 5: Solve for x
    x = 978,130,021,476.68/1,138,673.90
  6. Step 6: Final answer
    x = 859,008.03

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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.