Home / 1,100,667.69-1,651,165.53-390,636.27

Finding the Fourth Proportional to 1,100,667.69, 1,651,165.53 and 390,636.27

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Solution

The fourth proportional to 1,100,667.69, 1,651,165.53 and 390,636.27 is: 586,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,667.69 : 1,651,165.53 = 390,636.27 : x
  2. Step 2: Convert to fraction form
    1,100,667.69/1,651,165.53 = 390,636.27/x
  3. Step 3: Cross multiply
    1,100,667.69x = 1,651,165.53 × 390,636.27
  4. Step 4: Simplify right side
    1,100,667.69x = 645,005,143,791.77
  5. Step 5: Solve for x
    x = 645,005,143,791.77/1,100,667.69
  6. Step 6: Final answer
    x = 586,012.61

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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.