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Finding the Fourth Proportional to 650.84, 973.85 and 391.01

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Solution

The fourth proportional to 650.84, 973.85 and 391.01 is: 585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.84 : 973.85 = 391.01 : x
  2. Step 2: Convert to fraction form
    650.84/973.85 = 391.01/x
  3. Step 3: Cross multiply
    650.84x = 973.85 × 391.01
  4. Step 4: Simplify right side
    650.84x = 380,778.26
  5. Step 5: Solve for x
    x = 380,778.26/650.84
  6. Step 6: Final answer
    x = 585.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.