Home / 1,065.34-1,469.87-623.08

Finding the Fourth Proportional to 1,065.34, 1,469.87 and 623.08

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Solution

The fourth proportional to 1,065.34, 1,469.87 and 623.08 is: 859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.34 : 1,469.87 = 623.08 : x
  2. Step 2: Convert to fraction form
    1,065.34/1,469.87 = 623.08/x
  3. Step 3: Cross multiply
    1,065.34x = 1,469.87 × 623.08
  4. Step 4: Simplify right side
    1,065.34x = 915,846.60
  5. Step 5: Solve for x
    x = 915,846.60/1,065.34
  6. Step 6: Final answer
    x = 859.68

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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.