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Finding the Fourth Proportional to 895.97, 1,235.99 and 563.77

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Solution

The fourth proportional to 895.97, 1,235.99 and 563.77 is: 777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.97 : 1,235.99 = 563.77 : x
  2. Step 2: Convert to fraction form
    895.97/1,235.99 = 563.77/x
  3. Step 3: Cross multiply
    895.97x = 1,235.99 × 563.77
  4. Step 4: Simplify right side
    895.97x = 696,814.08
  5. Step 5: Solve for x
    x = 696,814.08/895.97
  6. Step 6: Final answer
    x = 777.72

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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.