Home / 1,091,131.78-1,505,808.32-607,696.86

Finding the Fourth Proportional to 1,091,131.78, 1,505,808.32 and 607,696.86

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Solution

The fourth proportional to 1,091,131.78, 1,505,808.32 and 607,696.86 is: 838,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,131.78 : 1,505,808.32 = 607,696.86 : x
  2. Step 2: Convert to fraction form
    1,091,131.78/1,505,808.32 = 607,696.86/x
  3. Step 3: Cross multiply
    1,091,131.78x = 1,505,808.32 × 607,696.86
  4. Step 4: Simplify right side
    1,091,131.78x = 915,074,987,825.88
  5. Step 5: Solve for x
    x = 915,074,987,825.88/1,091,131.78
  6. Step 6: Final answer
    x = 838,647.54

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1.5x scale

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.