Home / 753.03-1,126.80-445.02

Finding the Fourth Proportional to 753.03, 1,126.80 and 445.02

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Solution

The fourth proportional to 753.03, 1,126.80 and 445.02 is: 665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.03 : 1,126.80 = 445.02 : x
  2. Step 2: Convert to fraction form
    753.03/1,126.80 = 445.02/x
  3. Step 3: Cross multiply
    753.03x = 1,126.80 × 445.02
  4. Step 4: Simplify right side
    753.03x = 501,448.54
  5. Step 5: Solve for x
    x = 501,448.54/753.03
  6. Step 6: Final answer
    x = 665.91

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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.