Home / 1,619.88-2,430.17-524.23

Finding the Fourth Proportional to 1,619.88, 2,430.17 and 524.23

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Solution

The fourth proportional to 1,619.88, 2,430.17 and 524.23 is: 786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.88 : 2,430.17 = 524.23 : x
  2. Step 2: Convert to fraction form
    1,619.88/2,430.17 = 524.23/x
  3. Step 3: Cross multiply
    1,619.88x = 2,430.17 × 524.23
  4. Step 4: Simplify right side
    1,619.88x = 1,273,954.56
  5. Step 5: Solve for x
    x = 1,273,954.56/1,619.88
  6. Step 6: Final answer
    x = 786.45

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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.