Home / 1,258,977.20-1,889,023.72-659,795.76

Finding the Fourth Proportional to 1,258,977.20, 1,889,023.72 and 659,795.76

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Solution

The fourth proportional to 1,258,977.20, 1,889,023.72 and 659,795.76 is: 989,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,977.20 : 1,889,023.72 = 659,795.76 : x
  2. Step 2: Convert to fraction form
    1,258,977.20/1,889,023.72 = 659,795.76/x
  3. Step 3: Cross multiply
    1,258,977.20x = 1,889,023.72 × 659,795.76
  4. Step 4: Simplify right side
    1,258,977.20x = 1,246,369,840,995.43
  5. Step 5: Solve for x
    x = 1,246,369,840,995.43/1,258,977.20
  6. Step 6: Final answer
    x = 989,986.03

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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.