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Finding the Fourth Proportional to 995.34, 1,373.58 and 575.76

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Solution

The fourth proportional to 995.34, 1,373.58 and 575.76 is: 794.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.34 : 1,373.58 = 575.76 : x
  2. Step 2: Convert to fraction form
    995.34/1,373.58 = 575.76/x
  3. Step 3: Cross multiply
    995.34x = 1,373.58 × 575.76
  4. Step 4: Simplify right side
    995.34x = 790,852.42
  5. Step 5: Solve for x
    x = 790,852.42/995.34
  6. Step 6: Final answer
    x = 794.56

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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.