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Finding the Fourth Proportional to 520.69, 718.03 and 441.92

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Solution

The fourth proportional to 520.69, 718.03 and 441.92 is: 609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.69 : 718.03 = 441.92 : x
  2. Step 2: Convert to fraction form
    520.69/718.03 = 441.92/x
  3. Step 3: Cross multiply
    520.69x = 718.03 × 441.92
  4. Step 4: Simplify right side
    520.69x = 317,311.82
  5. Step 5: Solve for x
    x = 317,311.82/520.69
  6. Step 6: Final answer
    x = 609.41

Related Problems

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Half scale
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Double scale
Find fourth proportional to 521.69, 719.41 and 442.92
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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.