Home / 1,619.19-2,428.11-508.32

Finding the Fourth Proportional to 1,619.19, 2,428.11 and 508.32

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Solution

The fourth proportional to 1,619.19, 2,428.11 and 508.32 is: 762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.19 : 2,428.11 = 508.32 : x
  2. Step 2: Convert to fraction form
    1,619.19/2,428.11 = 508.32/x
  3. Step 3: Cross multiply
    1,619.19x = 2,428.11 × 508.32
  4. Step 4: Simplify right side
    1,619.19x = 1,234,256.88
  5. Step 5: Solve for x
    x = 1,234,256.88/1,619.19
  6. Step 6: Final answer
    x = 762.27

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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.