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Finding the Fourth Proportional to 554.58, 826.34 and 529.74

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Solution

The fourth proportional to 554.58, 826.34 and 529.74 is: 789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.58 : 826.34 = 529.74 : x
  2. Step 2: Convert to fraction form
    554.58/826.34 = 529.74/x
  3. Step 3: Cross multiply
    554.58x = 826.34 × 529.74
  4. Step 4: Simplify right side
    554.58x = 437,742.70
  5. Step 5: Solve for x
    x = 437,742.70/554.58
  6. Step 6: Final answer
    x = 789.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.