Home / 1,328,245.37-1,992,430.32-429,757.46

Finding the Fourth Proportional to 1,328,245.37, 1,992,430.32 and 429,757.46

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Solution

The fourth proportional to 1,328,245.37, 1,992,430.32 and 429,757.46 is: 644,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,245.37 : 1,992,430.32 = 429,757.46 : x
  2. Step 2: Convert to fraction form
    1,328,245.37/1,992,430.32 = 429,757.46/x
  3. Step 3: Cross multiply
    1,328,245.37x = 1,992,430.32 × 429,757.46
  4. Step 4: Simplify right side
    1,328,245.37x = 856,261,793,550.19
  5. Step 5: Solve for x
    x = 856,261,793,550.19/1,328,245.37
  6. Step 6: Final answer
    x = 644,656.34

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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.