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Finding the Fourth Proportional to 526.94, 793.50 and 390.96

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Solution

The fourth proportional to 526.94, 793.50 and 390.96 is: 588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.94 : 793.50 = 390.96 : x
  2. Step 2: Convert to fraction form
    526.94/793.50 = 390.96/x
  3. Step 3: Cross multiply
    526.94x = 793.50 × 390.96
  4. Step 4: Simplify right side
    526.94x = 310,225.29
  5. Step 5: Solve for x
    x = 310,225.29/526.94
  6. Step 6: Final answer
    x = 588.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.