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Finding the Fourth Proportional to 895.54, 1,235.83 and 502.65

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Solution

The fourth proportional to 895.54, 1,235.83 and 502.65 is: 693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.54 : 1,235.83 = 502.65 : x
  2. Step 2: Convert to fraction form
    895.54/1,235.83 = 502.65/x
  3. Step 3: Cross multiply
    895.54x = 1,235.83 × 502.65
  4. Step 4: Simplify right side
    895.54x = 621,189.95
  5. Step 5: Solve for x
    x = 621,189.95/895.54
  6. Step 6: Final answer
    x = 693.65

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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.