Home / 1,138,970.80-1,571,782.53-622,758

Finding the Fourth Proportional to 1,138,970.80, 1,571,782.53 and 622,758

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Solution

The fourth proportional to 1,138,970.80, 1,571,782.53 and 622,758 is: 859,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,970.80 : 1,571,782.53 = 622,758 : x
  2. Step 2: Convert to fraction form
    1,138,970.80/1,571,782.53 = 622,758/x
  3. Step 3: Cross multiply
    1,138,970.80x = 1,571,782.53 × 622,758
  4. Step 4: Simplify right side
    1,138,970.80x = 978,840,141,703.95
  5. Step 5: Solve for x
    x = 978,840,141,703.95/1,138,970.80
  6. Step 6: Final answer
    x = 859,407.58

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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.