Home / 1,224.18-1,836.72-444.15

Finding the Fourth Proportional to 1,224.18, 1,836.72 and 444.15

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Solution

The fourth proportional to 1,224.18, 1,836.72 and 444.15 is: 666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.18 : 1,836.72 = 444.15 : x
  2. Step 2: Convert to fraction form
    1,224.18/1,836.72 = 444.15/x
  3. Step 3: Cross multiply
    1,224.18x = 1,836.72 × 444.15
  4. Step 4: Simplify right side
    1,224.18x = 815,779.19
  5. Step 5: Solve for x
    x = 815,779.19/1,224.18
  6. Step 6: Final answer
    x = 666.39

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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.