Home / 1,138,970.49-1,571,782.10-622,757.69

Finding the Fourth Proportional to 1,138,970.49, 1,571,782.10 and 622,757.69

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Solution

The fourth proportional to 1,138,970.49, 1,571,782.10 and 622,757.69 is: 859,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,970.49 : 1,571,782.10 = 622,757.69 : x
  2. Step 2: Convert to fraction form
    1,138,970.49/1,571,782.10 = 622,757.69/x
  3. Step 3: Cross multiply
    1,138,970.49x = 1,571,782.10 × 622,757.69
  4. Step 4: Simplify right side
    1,138,970.49x = 978,839,389,779.35
  5. Step 5: Solve for x
    x = 978,839,389,779.35/1,138,970.49
  6. Step 6: Final answer
    x = 859,407.16

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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.