Home / 1,188,170.64-1,639,762.38-678,862.08

Finding the Fourth Proportional to 1,188,170.64, 1,639,762.38 and 678,862.08

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Solution

The fourth proportional to 1,188,170.64, 1,639,762.38 and 678,862.08 is: 936,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,170.64 : 1,639,762.38 = 678,862.08 : x
  2. Step 2: Convert to fraction form
    1,188,170.64/1,639,762.38 = 678,862.08/x
  3. Step 3: Cross multiply
    1,188,170.64x = 1,639,762.38 × 678,862.08
  4. Step 4: Simplify right side
    1,188,170.64x = 1,113,172,499,992.55
  5. Step 5: Solve for x
    x = 1,113,172,499,992.55/1,188,170.64
  6. Step 6: Final answer
    x = 936,879.32

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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.