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Finding the Fourth Proportional to 632.64, 873 and 501.96

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Solution

The fourth proportional to 632.64, 873 and 501.96 is: 692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.64 : 873 = 501.96 : x
  2. Step 2: Convert to fraction form
    632.64/873 = 501.96/x
  3. Step 3: Cross multiply
    632.64x = 873 × 501.96
  4. Step 4: Simplify right side
    632.64x = 438,211.08
  5. Step 5: Solve for x
    x = 438,211.08/632.64
  6. Step 6: Final answer
    x = 692.67

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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.