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Finding the Fourth Proportional to 647.46, 971.46 and 596.40

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Solution

The fourth proportional to 647.46, 971.46 and 596.40 is: 894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.46 : 971.46 = 596.40 : x
  2. Step 2: Convert to fraction form
    647.46/971.46 = 596.40/x
  3. Step 3: Cross multiply
    647.46x = 971.46 × 596.40
  4. Step 4: Simplify right side
    647.46x = 579,378.74
  5. Step 5: Solve for x
    x = 579,378.74/647.46
  6. Step 6: Final answer
    x = 894.85

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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.