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Finding the Fourth Proportional to 858.24, 1,184.54 and 504.21

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Solution

The fourth proportional to 858.24, 1,184.54 and 504.21 is: 695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    858.24 : 1,184.54 = 504.21 : x
  2. Step 2: Convert to fraction form
    858.24/1,184.54 = 504.21/x
  3. Step 3: Cross multiply
    858.24x = 1,184.54 × 504.21
  4. Step 4: Simplify right side
    858.24x = 597,256.91
  5. Step 5: Solve for x
    x = 597,256.91/858.24
  6. Step 6: Final answer
    x = 695.91

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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.