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Finding the Fourth Proportional to 522.99, 784.62 and 490.05

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Solution

The fourth proportional to 522.99, 784.62 and 490.05 is: 735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.99 : 784.62 = 490.05 : x
  2. Step 2: Convert to fraction form
    522.99/784.62 = 490.05/x
  3. Step 3: Cross multiply
    522.99x = 784.62 × 490.05
  4. Step 4: Simplify right side
    522.99x = 384,503.03
  5. Step 5: Solve for x
    x = 384,503.03/522.99
  6. Step 6: Final answer
    x = 735.20

Related Problems

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Double scale
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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.