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Finding the Fourth Proportional to 651.47, 975.49 and 446.45

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Solution

The fourth proportional to 651.47, 975.49 and 446.45 is: 668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.47 : 975.49 = 446.45 : x
  2. Step 2: Convert to fraction form
    651.47/975.49 = 446.45/x
  3. Step 3: Cross multiply
    651.47x = 975.49 × 446.45
  4. Step 4: Simplify right side
    651.47x = 435,501.52
  5. Step 5: Solve for x
    x = 435,501.52/651.47
  6. Step 6: Final answer
    x = 668.50

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Double scale
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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.