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Finding the Fourth Proportional to 569.49, 785.87 and 382.95

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Solution

The fourth proportional to 569.49, 785.87 and 382.95 is: 528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.49 : 785.87 = 382.95 : x
  2. Step 2: Convert to fraction form
    569.49/785.87 = 382.95/x
  3. Step 3: Cross multiply
    569.49x = 785.87 × 382.95
  4. Step 4: Simplify right side
    569.49x = 300,947.00
  5. Step 5: Solve for x
    x = 300,947.00/569.49
  6. Step 6: Final answer
    x = 528.45

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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.