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Finding the Fourth Proportional to 529.30, 793.05 and 451.90

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Solution

The fourth proportional to 529.30, 793.05 and 451.90 is: 677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.30 : 793.05 = 451.90 : x
  2. Step 2: Convert to fraction form
    529.30/793.05 = 451.90/x
  3. Step 3: Cross multiply
    529.30x = 793.05 × 451.90
  4. Step 4: Simplify right side
    529.30x = 358,379.30
  5. Step 5: Solve for x
    x = 358,379.30/529.30
  6. Step 6: Final answer
    x = 677.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.