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Finding the Fourth Proportional to 482.60, 719.56 and 477.74

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Solution

The fourth proportional to 482.60, 719.56 and 477.74 is: 712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.60 : 719.56 = 477.74 : x
  2. Step 2: Convert to fraction form
    482.60/719.56 = 477.74/x
  3. Step 3: Cross multiply
    482.60x = 719.56 × 477.74
  4. Step 4: Simplify right side
    482.60x = 343,762.59
  5. Step 5: Solve for x
    x = 343,762.59/482.60
  6. Step 6: Final answer
    x = 712.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.