Home / 1,120,829.70-1,681,119.97-401,142.34

Finding the Fourth Proportional to 1,120,829.70, 1,681,119.97 and 401,142.34

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Solution

The fourth proportional to 1,120,829.70, 1,681,119.97 and 401,142.34 is: 601,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,829.70 : 1,681,119.97 = 401,142.34 : x
  2. Step 2: Convert to fraction form
    1,120,829.70/1,681,119.97 = 401,142.34/x
  3. Step 3: Cross multiply
    1,120,829.70x = 1,681,119.97 × 401,142.34
  4. Step 4: Simplify right side
    1,120,829.70x = 674,368,398,586.53
  5. Step 5: Solve for x
    x = 674,368,398,586.53/1,120,829.70
  6. Step 6: Final answer
    x = 601,668.92

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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.