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Finding the Fourth Proportional to 670.57, 925.38 and 437.69

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Solution

The fourth proportional to 670.57, 925.38 and 437.69 is: 604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.57 : 925.38 = 437.69 : x
  2. Step 2: Convert to fraction form
    670.57/925.38 = 437.69/x
  3. Step 3: Cross multiply
    670.57x = 925.38 × 437.69
  4. Step 4: Simplify right side
    670.57x = 405,029.57
  5. Step 5: Solve for x
    x = 405,029.57/670.57
  6. Step 6: Final answer
    x = 604.01

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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.