Home / 1,317.59-1,977.16-495.84

Finding the Fourth Proportional to 1,317.59, 1,977.16 and 495.84

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Solution

The fourth proportional to 1,317.59, 1,977.16 and 495.84 is: 744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.59 : 1,977.16 = 495.84 : x
  2. Step 2: Convert to fraction form
    1,317.59/1,977.16 = 495.84/x
  3. Step 3: Cross multiply
    1,317.59x = 1,977.16 × 495.84
  4. Step 4: Simplify right side
    1,317.59x = 980,355.01
  5. Step 5: Solve for x
    x = 980,355.01/1,317.59
  6. Step 6: Final answer
    x = 744.05

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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.