Home / 686,128.36-946,546.62-414,109.30

Finding the Fourth Proportional to 686,128.36, 946,546.62 and 414,109.30

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Solution

The fourth proportional to 686,128.36, 946,546.62 and 414,109.30 is: 571,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,128.36 : 946,546.62 = 414,109.30 : x
  2. Step 2: Convert to fraction form
    686,128.36/946,546.62 = 414,109.30/x
  3. Step 3: Cross multiply
    686,128.36x = 946,546.62 × 414,109.30
  4. Step 4: Simplify right side
    686,128.36x = 391,973,758,225.57
  5. Step 5: Solve for x
    x = 391,973,758,225.57/686,128.36
  6. Step 6: Final answer
    x = 571,283.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.