Home / 1,020.09-1,526.63-629.94

Finding the Fourth Proportional to 1,020.09, 1,526.63 and 629.94

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Solution

The fourth proportional to 1,020.09, 1,526.63 and 629.94 is: 942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.09 : 1,526.63 = 629.94 : x
  2. Step 2: Convert to fraction form
    1,020.09/1,526.63 = 629.94/x
  3. Step 3: Cross multiply
    1,020.09x = 1,526.63 × 629.94
  4. Step 4: Simplify right side
    1,020.09x = 961,682.15
  5. Step 5: Solve for x
    x = 961,682.15/1,020.09
  6. Step 6: Final answer
    x = 942.74

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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.