Home / 1,065.22-1,470.01-623.03

Finding the Fourth Proportional to 1,065.22, 1,470.01 and 623.03

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Solution

The fourth proportional to 1,065.22, 1,470.01 and 623.03 is: 859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.22 : 1,470.01 = 623.03 : x
  2. Step 2: Convert to fraction form
    1,065.22/1,470.01 = 623.03/x
  3. Step 3: Cross multiply
    1,065.22x = 1,470.01 × 623.03
  4. Step 4: Simplify right side
    1,065.22x = 915,860.33
  5. Step 5: Solve for x
    x = 915,860.33/1,065.22
  6. Step 6: Final answer
    x = 859.79

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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.