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Finding the Fourth Proportional to 895.55, 1,235.88 and 502.61

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Solution

The fourth proportional to 895.55, 1,235.88 and 502.61 is: 693.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.55 : 1,235.88 = 502.61 : x
  2. Step 2: Convert to fraction form
    895.55/1,235.88 = 502.61/x
  3. Step 3: Cross multiply
    895.55x = 1,235.88 × 502.61
  4. Step 4: Simplify right side
    895.55x = 621,159.47
  5. Step 5: Solve for x
    x = 621,159.47/895.55
  6. Step 6: Final answer
    x = 693.61

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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.