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Finding the Fourth Proportional to 440.86, 603.90 and 436

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Solution

The fourth proportional to 440.86, 603.90 and 436 is: 597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.86 : 603.90 = 436 : x
  2. Step 2: Convert to fraction form
    440.86/603.90 = 436/x
  3. Step 3: Cross multiply
    440.86x = 603.90 × 436
  4. Step 4: Simplify right side
    440.86x = 263,300.40
  5. Step 5: Solve for x
    x = 263,300.40/440.86
  6. Step 6: Final answer
    x = 597.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.