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Finding the Fourth Proportional to 632.07, 873.08 and 486.51

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Solution

The fourth proportional to 632.07, 873.08 and 486.51 is: 672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.07 : 873.08 = 486.51 : x
  2. Step 2: Convert to fraction form
    632.07/873.08 = 486.51/x
  3. Step 3: Cross multiply
    632.07x = 873.08 × 486.51
  4. Step 4: Simplify right side
    632.07x = 424,758.27
  5. Step 5: Solve for x
    x = 424,758.27/632.07
  6. Step 6: Final answer
    x = 672.01

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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.