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Finding the Fourth Proportional to 525.42, 786.65 and 460.08

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Solution

The fourth proportional to 525.42, 786.65 and 460.08 is: 688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.42 : 786.65 = 460.08 : x
  2. Step 2: Convert to fraction form
    525.42/786.65 = 460.08/x
  3. Step 3: Cross multiply
    525.42x = 786.65 × 460.08
  4. Step 4: Simplify right side
    525.42x = 361,919.63
  5. Step 5: Solve for x
    x = 361,919.63/525.42
  6. Step 6: Final answer
    x = 688.82

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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.