Home / 1,004.16-1,505.42-618.60

Finding the Fourth Proportional to 1,004.16, 1,505.42 and 618.60

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Solution

The fourth proportional to 1,004.16, 1,505.42 and 618.60 is: 927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.16 : 1,505.42 = 618.60 : x
  2. Step 2: Convert to fraction form
    1,004.16/1,505.42 = 618.60/x
  3. Step 3: Cross multiply
    1,004.16x = 1,505.42 × 618.60
  4. Step 4: Simplify right side
    1,004.16x = 931,252.81
  5. Step 5: Solve for x
    x = 931,252.81/1,004.16
  6. Step 6: Final answer
    x = 927.39

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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.