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Finding the Fourth Proportional to 528.54, 788.62 and 525.48

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Solution

The fourth proportional to 528.54, 788.62 and 525.48 is: 784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.54 : 788.62 = 525.48 : x
  2. Step 2: Convert to fraction form
    528.54/788.62 = 525.48/x
  3. Step 3: Cross multiply
    528.54x = 788.62 × 525.48
  4. Step 4: Simplify right side
    528.54x = 414,404.04
  5. Step 5: Solve for x
    x = 414,404.04/528.54
  6. Step 6: Final answer
    x = 784.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.