Home / 1,286,688.72-1,930,049.50-340,051.26

Finding the Fourth Proportional to 1,286,688.72, 1,930,049.50 and 340,051.26

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Solution

The fourth proportional to 1,286,688.72, 1,930,049.50 and 340,051.26 is: 510,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,688.72 : 1,930,049.50 = 340,051.26 : x
  2. Step 2: Convert to fraction form
    1,286,688.72/1,930,049.50 = 340,051.26/x
  3. Step 3: Cross multiply
    1,286,688.72x = 1,930,049.50 × 340,051.26
  4. Step 4: Simplify right side
    1,286,688.72x = 656,315,764,337.37
  5. Step 5: Solve for x
    x = 656,315,764,337.37/1,286,688.72
  6. Step 6: Final answer
    x = 510,081.23

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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.