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Finding the Fourth Proportional to 623.05, 934.75 and 555.05

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Solution

The fourth proportional to 623.05, 934.75 and 555.05 is: 832.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.05 : 934.75 = 555.05 : x
  2. Step 2: Convert to fraction form
    623.05/934.75 = 555.05/x
  3. Step 3: Cross multiply
    623.05x = 934.75 × 555.05
  4. Step 4: Simplify right side
    623.05x = 518,832.99
  5. Step 5: Solve for x
    x = 518,832.99/623.05
  6. Step 6: Final answer
    x = 832.73

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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.