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Finding the Fourth Proportional to 583.43, 804.78 and 373.64

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Solution

The fourth proportional to 583.43, 804.78 and 373.64 is: 515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.43 : 804.78 = 373.64 : x
  2. Step 2: Convert to fraction form
    583.43/804.78 = 373.64/x
  3. Step 3: Cross multiply
    583.43x = 804.78 × 373.64
  4. Step 4: Simplify right side
    583.43x = 300,693.98
  5. Step 5: Solve for x
    x = 300,693.98/583.43
  6. Step 6: Final answer
    x = 515.39

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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.