Home / 829,213.23-1,243,815.75-323,825.55

Finding the Fourth Proportional to 829,213.23, 1,243,815.75 and 323,825.55

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Solution

The fourth proportional to 829,213.23, 1,243,815.75 and 323,825.55 is: 485,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,213.23 : 1,243,815.75 = 323,825.55 : x
  2. Step 2: Convert to fraction form
    829,213.23/1,243,815.75 = 323,825.55/x
  3. Step 3: Cross multiply
    829,213.23x = 1,243,815.75 × 323,825.55
  4. Step 4: Simplify right side
    829,213.23x = 402,779,319,342.41
  5. Step 5: Solve for x
    x = 402,779,319,342.41/829,213.23
  6. Step 6: Final answer
    x = 485,736.73

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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.