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Finding the Fourth Proportional to 652.82, 901.00 and 487.51

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Solution

The fourth proportional to 652.82, 901.00 and 487.51 is: 672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.82 : 901.00 = 487.51 : x
  2. Step 2: Convert to fraction form
    652.82/901.00 = 487.51/x
  3. Step 3: Cross multiply
    652.82x = 901.00 × 487.51
  4. Step 4: Simplify right side
    652.82x = 439,242.23
  5. Step 5: Solve for x
    x = 439,242.23/652.82
  6. Step 6: Final answer
    x = 672.84

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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.