Home / 531,449.86-733,467-305,090.50

Finding the Fourth Proportional to 531,449.86, 733,467 and 305,090.50

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Solution

The fourth proportional to 531,449.86, 733,467 and 305,090.50 is: 421,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,449.86 : 733,467 = 305,090.50 : x
  2. Step 2: Convert to fraction form
    531,449.86/733,467 = 305,090.50/x
  3. Step 3: Cross multiply
    531,449.86x = 733,467 × 305,090.50
  4. Step 4: Simplify right side
    531,449.86x = 223,773,813,763.50
  5. Step 5: Solve for x
    x = 223,773,813,763.50/531,449.86
  6. Step 6: Final answer
    x = 421,062.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.