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Finding the Fourth Proportional to 593.92, 890.10 and 429.94

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Solution

The fourth proportional to 593.92, 890.10 and 429.94 is: 644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.92 : 890.10 = 429.94 : x
  2. Step 2: Convert to fraction form
    593.92/890.10 = 429.94/x
  3. Step 3: Cross multiply
    593.92x = 890.10 × 429.94
  4. Step 4: Simplify right side
    593.92x = 382,690.71
  5. Step 5: Solve for x
    x = 382,690.71/593.92
  6. Step 6: Final answer
    x = 644.35

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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.