Home / 443,586.90-664,905.20-316,842.75

Finding the Fourth Proportional to 443,586.90, 664,905.20 and 316,842.75

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Solution

The fourth proportional to 443,586.90, 664,905.20 and 316,842.75 is: 474,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,586.90 : 664,905.20 = 316,842.75 : x
  2. Step 2: Convert to fraction form
    443,586.90/664,905.20 = 316,842.75/x
  3. Step 3: Cross multiply
    443,586.90x = 664,905.20 × 316,842.75
  4. Step 4: Simplify right side
    443,586.90x = 210,670,390,473.09
  5. Step 5: Solve for x
    x = 210,670,390,473.09/443,586.90
  6. Step 6: Final answer
    x = 474,924.73

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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.