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Finding the Fourth Proportional to 594.38, 894.88 and 515

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Solution

The fourth proportional to 594.38, 894.88 and 515 is: 775.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.38 : 894.88 = 515 : x
  2. Step 2: Convert to fraction form
    594.38/894.88 = 515/x
  3. Step 3: Cross multiply
    594.38x = 894.88 × 515
  4. Step 4: Simplify right side
    594.38x = 460,860.63
  5. Step 5: Solve for x
    x = 460,860.63/594.38
  6. Step 6: Final answer
    x = 775.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.