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Finding the Fourth Proportional to 593.44, 888.69 and 420.28

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Solution

The fourth proportional to 593.44, 888.69 and 420.28 is: 629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.44 : 888.69 = 420.28 : x
  2. Step 2: Convert to fraction form
    593.44/888.69 = 420.28/x
  3. Step 3: Cross multiply
    593.44x = 888.69 × 420.28
  4. Step 4: Simplify right side
    593.44x = 373,498.63
  5. Step 5: Solve for x
    x = 373,498.63/593.44
  6. Step 6: Final answer
    x = 629.38

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1.5x scale

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.