Home / 1,879,668.56-2,819,502.84-459,707.78

Finding the Fourth Proportional to 1,879,668.56, 2,819,502.84 and 459,707.78

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Solution

The fourth proportional to 1,879,668.56, 2,819,502.84 and 459,707.78 is: 689,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879,668.56 : 2,819,502.84 = 459,707.78 : x
  2. Step 2: Convert to fraction form
    1,879,668.56/2,819,502.84 = 459,707.78/x
  3. Step 3: Cross multiply
    1,879,668.56x = 2,819,502.84 × 459,707.78
  4. Step 4: Simplify right side
    1,879,668.56x = 1,296,147,391,280.10
  5. Step 5: Solve for x
    x = 1,296,147,391,280.10/1,879,668.56
  6. Step 6: Final answer
    x = 689,561.67

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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.