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Finding the Fourth Proportional to 619.68, 854.16 and 592.35

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Solution

The fourth proportional to 619.68, 854.16 and 592.35 is: 816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.68 : 854.16 = 592.35 : x
  2. Step 2: Convert to fraction form
    619.68/854.16 = 592.35/x
  3. Step 3: Cross multiply
    619.68x = 854.16 × 592.35
  4. Step 4: Simplify right side
    619.68x = 505,961.68
  5. Step 5: Solve for x
    x = 505,961.68/619.68
  6. Step 6: Final answer
    x = 816.49

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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.