Home / 1,328,986.34-1,833,236.85-838,781.60

Finding the Fourth Proportional to 1,328,986.34, 1,833,236.85 and 838,781.60

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Solution

The fourth proportional to 1,328,986.34, 1,833,236.85 and 838,781.60 is: 1,157,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,986.34 : 1,833,236.85 = 838,781.60 : x
  2. Step 2: Convert to fraction form
    1,328,986.34/1,833,236.85 = 838,781.60/x
  3. Step 3: Cross multiply
    1,328,986.34x = 1,833,236.85 × 838,781.60
  4. Step 4: Simplify right side
    1,328,986.34x = 1,537,685,332,201.21
  5. Step 5: Solve for x
    x = 1,537,685,332,201.21/1,328,986.34
  6. Step 6: Final answer
    x = 1,157,036.22

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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.