Home / 1,218.44-1,827.65-525.60

Finding the Fourth Proportional to 1,218.44, 1,827.65 and 525.60

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Solution

The fourth proportional to 1,218.44, 1,827.65 and 525.60 is: 788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.44 : 1,827.65 = 525.60 : x
  2. Step 2: Convert to fraction form
    1,218.44/1,827.65 = 525.60/x
  3. Step 3: Cross multiply
    1,218.44x = 1,827.65 × 525.60
  4. Step 4: Simplify right side
    1,218.44x = 960,614.15
  5. Step 5: Solve for x
    x = 960,614.15/1,218.44
  6. Step 6: Final answer
    x = 788.40

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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.