Home / 1,047.36-1,445.28-605.22

Finding the Fourth Proportional to 1,047.36, 1,445.28 and 605.22

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Solution

The fourth proportional to 1,047.36, 1,445.28 and 605.22 is: 835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.36 : 1,445.28 = 605.22 : x
  2. Step 2: Convert to fraction form
    1,047.36/1,445.28 = 605.22/x
  3. Step 3: Cross multiply
    1,047.36x = 1,445.28 × 605.22
  4. Step 4: Simplify right side
    1,047.36x = 874,712.36
  5. Step 5: Solve for x
    x = 874,712.36/1,047.36
  6. Step 6: Final answer
    x = 835.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.