Home / 1,452.48-2,178.72-412.59

Finding the Fourth Proportional to 1,452.48, 2,178.72 and 412.59

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Solution

The fourth proportional to 1,452.48, 2,178.72 and 412.59 is: 618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.48 : 2,178.72 = 412.59 : x
  2. Step 2: Convert to fraction form
    1,452.48/2,178.72 = 412.59/x
  3. Step 3: Cross multiply
    1,452.48x = 2,178.72 × 412.59
  4. Step 4: Simplify right side
    1,452.48x = 898,918.08
  5. Step 5: Solve for x
    x = 898,918.08/1,452.48
  6. Step 6: Final answer
    x = 618.89

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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.