Home / 1,186,823.72-1,780,515.63-388,102.16

Finding the Fourth Proportional to 1,186,823.72, 1,780,515.63 and 388,102.16

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Solution

The fourth proportional to 1,186,823.72, 1,780,515.63 and 388,102.16 is: 582,244.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,823.72 : 1,780,515.63 = 388,102.16 : x
  2. Step 2: Convert to fraction form
    1,186,823.72/1,780,515.63 = 388,102.16/x
  3. Step 3: Cross multiply
    1,186,823.72x = 1,780,515.63 × 388,102.16
  4. Step 4: Simplify right side
    1,186,823.72x = 691,021,953,014.18
  5. Step 5: Solve for x
    x = 691,021,953,014.18/1,186,823.72
  6. Step 6: Final answer
    x = 582,244.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.