Home / 1,317.62-1,976.43-452.00

Finding the Fourth Proportional to 1,317.62, 1,976.43 and 452.00

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Solution

The fourth proportional to 1,317.62, 1,976.43 and 452.00 is: 678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.62 : 1,976.43 = 452.00 : x
  2. Step 2: Convert to fraction form
    1,317.62/1,976.43 = 452.00/x
  3. Step 3: Cross multiply
    1,317.62x = 1,976.43 × 452.00
  4. Step 4: Simplify right side
    1,317.62x = 893,353.00
  5. Step 5: Solve for x
    x = 893,353.00/1,317.62
  6. Step 6: Final answer
    x = 678.00

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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.