Home / 1,412,577.82-2,118,639.75-387,668.65

Finding the Fourth Proportional to 1,412,577.82, 2,118,639.75 and 387,668.65

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Solution

The fourth proportional to 1,412,577.82, 2,118,639.75 and 387,668.65 is: 581,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,577.82 : 2,118,639.75 = 387,668.65 : x
  2. Step 2: Convert to fraction form
    1,412,577.82/2,118,639.75 = 387,668.65/x
  3. Step 3: Cross multiply
    1,412,577.82x = 2,118,639.75 × 387,668.65
  4. Step 4: Simplify right side
    1,412,577.82x = 821,330,201,125.64
  5. Step 5: Solve for x
    x = 821,330,201,125.64/1,412,577.82
  6. Step 6: Final answer
    x = 581,440.67

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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.