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Finding the Fourth Proportional to 673.61, 930.12 and 437.68

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Solution

The fourth proportional to 673.61, 930.12 and 437.68 is: 604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.61 : 930.12 = 437.68 : x
  2. Step 2: Convert to fraction form
    673.61/930.12 = 437.68/x
  3. Step 3: Cross multiply
    673.61x = 930.12 × 437.68
  4. Step 4: Simplify right side
    673.61x = 407,090.27
  5. Step 5: Solve for x
    x = 407,090.27/673.61
  6. Step 6: Final answer
    x = 604.34

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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.