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Finding the Fourth Proportional to 527.96, 727.44 and 503.40

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Solution

The fourth proportional to 527.96, 727.44 and 503.40 is: 693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.96 : 727.44 = 503.40 : x
  2. Step 2: Convert to fraction form
    527.96/727.44 = 503.40/x
  3. Step 3: Cross multiply
    527.96x = 727.44 × 503.40
  4. Step 4: Simplify right side
    527.96x = 366,193.30
  5. Step 5: Solve for x
    x = 366,193.30/527.96
  6. Step 6: Final answer
    x = 693.60

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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.