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Finding the Fourth Proportional to 451.39, 623.46 and 437.03

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Solution

The fourth proportional to 451.39, 623.46 and 437.03 is: 603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.39 : 623.46 = 437.03 : x
  2. Step 2: Convert to fraction form
    451.39/623.46 = 437.03/x
  3. Step 3: Cross multiply
    451.39x = 623.46 × 437.03
  4. Step 4: Simplify right side
    451.39x = 272,470.72
  5. Step 5: Solve for x
    x = 272,470.72/451.39
  6. Step 6: Final answer
    x = 603.63

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.