Home / 1,036.40-1,554.24-305.78

Finding the Fourth Proportional to 1,036.40, 1,554.24 and 305.78

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Solution

The fourth proportional to 1,036.40, 1,554.24 and 305.78 is: 458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.40 : 1,554.24 = 305.78 : x
  2. Step 2: Convert to fraction form
    1,036.40/1,554.24 = 305.78/x
  3. Step 3: Cross multiply
    1,036.40x = 1,554.24 × 305.78
  4. Step 4: Simplify right side
    1,036.40x = 475,255.51
  5. Step 5: Solve for x
    x = 475,255.51/1,036.40
  6. Step 6: Final answer
    x = 458.56

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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.