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Finding the Fourth Proportional to 895.09, 1,235.24 and 580.48

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Solution

The fourth proportional to 895.09, 1,235.24 and 580.48 is: 801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.09 : 1,235.24 = 580.48 : x
  2. Step 2: Convert to fraction form
    895.09/1,235.24 = 580.48/x
  3. Step 3: Cross multiply
    895.09x = 1,235.24 × 580.48
  4. Step 4: Simplify right side
    895.09x = 717,029.21
  5. Step 5: Solve for x
    x = 717,029.21/895.09
  6. Step 6: Final answer
    x = 801.07

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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.