Home / 631,128.60-945,643.14-443,747.16

Finding the Fourth Proportional to 631,128.60, 945,643.14 and 443,747.16

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Solution

The fourth proportional to 631,128.60, 945,643.14 and 443,747.16 is: 664,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,128.60 : 945,643.14 = 443,747.16 : x
  2. Step 2: Convert to fraction form
    631,128.60/945,643.14 = 443,747.16/x
  3. Step 3: Cross multiply
    631,128.60x = 945,643.14 × 443,747.16
  4. Step 4: Simplify right side
    631,128.60x = 419,626,457,748.48
  5. Step 5: Solve for x
    x = 419,626,457,748.48/631,128.60
  6. Step 6: Final answer
    x = 664,882.65

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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.