Home / 1,328,840.34-1,833,224.42-812,616.80

Finding the Fourth Proportional to 1,328,840.34, 1,833,224.42 and 812,616.80

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Solution

The fourth proportional to 1,328,840.34, 1,833,224.42 and 812,616.80 is: 1,121,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,840.34 : 1,833,224.42 = 812,616.80 : x
  2. Step 2: Convert to fraction form
    1,328,840.34/1,833,224.42 = 812,616.80/x
  3. Step 3: Cross multiply
    1,328,840.34x = 1,833,224.42 × 812,616.80
  4. Step 4: Simplify right side
    1,328,840.34x = 1,489,708,961,862.26
  5. Step 5: Solve for x
    x = 1,489,708,961,862.26/1,328,840.34
  6. Step 6: Final answer
    x = 1,121,059.41

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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.