Home / 1,328,234.20-1,992,092.10-429,458.20

Finding the Fourth Proportional to 1,328,234.20, 1,992,092.10 and 429,458.20

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Solution

The fourth proportional to 1,328,234.20, 1,992,092.10 and 429,458.20 is: 644,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,234.20 : 1,992,092.10 = 429,458.20 : x
  2. Step 2: Convert to fraction form
    1,328,234.20/1,992,092.10 = 429,458.20/x
  3. Step 3: Cross multiply
    1,328,234.20x = 1,992,092.10 × 429,458.20
  4. Step 4: Simplify right side
    1,328,234.20x = 855,520,287,500.22
  5. Step 5: Solve for x
    x = 855,520,287,500.22/1,328,234.20
  6. Step 6: Final answer
    x = 644,103.49

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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.