Home / 1,147,029.88-1,582,989.90-688,161.72

Finding the Fourth Proportional to 1,147,029.88, 1,582,989.90 and 688,161.72

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Solution

The fourth proportional to 1,147,029.88, 1,582,989.90 and 688,161.72 is: 949,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,029.88 : 1,582,989.90 = 688,161.72 : x
  2. Step 2: Convert to fraction form
    1,147,029.88/1,582,989.90 = 688,161.72/x
  3. Step 3: Cross multiply
    1,147,029.88x = 1,582,989.90 × 688,161.72
  4. Step 4: Simplify right side
    1,147,029.88x = 1,089,353,052,326.63
  5. Step 5: Solve for x
    x = 1,089,353,052,326.63/1,147,029.88
  6. Step 6: Final answer
    x = 949,716.37

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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.