Home / 430,885.36-646,028.24-190,868.96

Finding the Fourth Proportional to 430,885.36, 646,028.24 and 190,868.96

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Solution

The fourth proportional to 430,885.36, 646,028.24 and 190,868.96 is: 286,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,885.36 : 646,028.24 = 190,868.96 : x
  2. Step 2: Convert to fraction form
    430,885.36/646,028.24 = 190,868.96/x
  3. Step 3: Cross multiply
    430,885.36x = 646,028.24 × 190,868.96
  4. Step 4: Simplify right side
    430,885.36x = 123,306,738,299.43
  5. Step 5: Solve for x
    x = 123,306,738,299.43/430,885.36
  6. Step 6: Final answer
    x = 286,170.64

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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.