Home / 1,245.59-1,868.29-465.56

Finding the Fourth Proportional to 1,245.59, 1,868.29 and 465.56

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Solution

The fourth proportional to 1,245.59, 1,868.29 and 465.56 is: 698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.59 : 1,868.29 = 465.56 : x
  2. Step 2: Convert to fraction form
    1,245.59/1,868.29 = 465.56/x
  3. Step 3: Cross multiply
    1,245.59x = 1,868.29 × 465.56
  4. Step 4: Simplify right side
    1,245.59x = 869,807.44
  5. Step 5: Solve for x
    x = 869,807.44/1,245.59
  6. Step 6: Final answer
    x = 698.31

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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.