Home / 1,146.49-1,719.05-415.82

Finding the Fourth Proportional to 1,146.49, 1,719.05 and 415.82

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Solution

The fourth proportional to 1,146.49, 1,719.05 and 415.82 is: 623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.49 : 1,719.05 = 415.82 : x
  2. Step 2: Convert to fraction form
    1,146.49/1,719.05 = 415.82/x
  3. Step 3: Cross multiply
    1,146.49x = 1,719.05 × 415.82
  4. Step 4: Simplify right side
    1,146.49x = 714,815.37
  5. Step 5: Solve for x
    x = 714,815.37/1,146.49
  6. Step 6: Final answer
    x = 623.48

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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.