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Finding the Fourth Proportional to 619.72, 854.03 and 444.76

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Solution

The fourth proportional to 619.72, 854.03 and 444.76 is: 612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.72 : 854.03 = 444.76 : x
  2. Step 2: Convert to fraction form
    619.72/854.03 = 444.76/x
  3. Step 3: Cross multiply
    619.72x = 854.03 × 444.76
  4. Step 4: Simplify right side
    619.72x = 379,838.38
  5. Step 5: Solve for x
    x = 379,838.38/619.72
  6. Step 6: Final answer
    x = 612.92

Related Problems

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1.5x scale

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.