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Finding the Fourth Proportional to 662,514.21, 993,562.11 and 213,134.94

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Solution

The fourth proportional to 662,514.21, 993,562.11 and 213,134.94 is: 319,635.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,514.21 : 993,562.11 = 213,134.94 : x
  2. Step 2: Convert to fraction form
    662,514.21/993,562.11 = 213,134.94/x
  3. Step 3: Cross multiply
    662,514.21x = 993,562.11 × 213,134.94
  4. Step 4: Simplify right side
    662,514.21x = 211,762,800,701.12
  5. Step 5: Solve for x
    x = 211,762,800,701.12/662,514.21
  6. Step 6: Final answer
    x = 319,635.11

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1.5x scale

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.