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Finding the Fourth Proportional to 610.92, 916.44 and 446.88

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Solution

The fourth proportional to 610.92, 916.44 and 446.88 is: 670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.92 : 916.44 = 446.88 : x
  2. Step 2: Convert to fraction form
    610.92/916.44 = 446.88/x
  3. Step 3: Cross multiply
    610.92x = 916.44 × 446.88
  4. Step 4: Simplify right side
    610.92x = 409,538.71
  5. Step 5: Solve for x
    x = 409,538.71/610.92
  6. Step 6: Final answer
    x = 670.36

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1.5x scale

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.