Home / 2,857,256.10-4,286,538.72-1,238,296.66

Finding the Fourth Proportional to 2,857,256.10, 4,286,538.72 and 1,238,296.66

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Solution

The fourth proportional to 2,857,256.10, 4,286,538.72 and 1,238,296.66 is: 1,857,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857,256.10 : 4,286,538.72 = 1,238,296.66 : x
  2. Step 2: Convert to fraction form
    2,857,256.10/4,286,538.72 = 1,238,296.66/x
  3. Step 3: Cross multiply
    2,857,256.10x = 4,286,538.72 × 1,238,296.66
  4. Step 4: Simplify right side
    2,857,256.10x = 5,308,006,579,936.68
  5. Step 5: Solve for x
    x = 5,308,006,579,936.68/2,857,256.10
  6. Step 6: Final answer
    x = 1,857,728.67

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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.