Home / 921,814.38-1,381,771.44-353,040.48

Finding the Fourth Proportional to 921,814.38, 1,381,771.44 and 353,040.48

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Solution

The fourth proportional to 921,814.38, 1,381,771.44 and 353,040.48 is: 529,196.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,814.38 : 1,381,771.44 = 353,040.48 : x
  2. Step 2: Convert to fraction form
    921,814.38/1,381,771.44 = 353,040.48/x
  3. Step 3: Cross multiply
    921,814.38x = 1,381,771.44 × 353,040.48
  4. Step 4: Simplify right side
    921,814.38x = 487,821,252,427.89
  5. Step 5: Solve for x
    x = 487,821,252,427.89/921,814.38
  6. Step 6: Final answer
    x = 529,196.84

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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.