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Finding the Fourth Proportional to 719.55, 993.03 and 562.38

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Solution

The fourth proportional to 719.55, 993.03 and 562.38 is: 776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.55 : 993.03 = 562.38 : x
  2. Step 2: Convert to fraction form
    719.55/993.03 = 562.38/x
  3. Step 3: Cross multiply
    719.55x = 993.03 × 562.38
  4. Step 4: Simplify right side
    719.55x = 558,460.21
  5. Step 5: Solve for x
    x = 558,460.21/719.55
  6. Step 6: Final answer
    x = 776.12

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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.