Home / 945,102.96-1,304,242.32-515,372.04

Finding the Fourth Proportional to 945,102.96, 1,304,242.32 and 515,372.04

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Solution

The fourth proportional to 945,102.96, 1,304,242.32 and 515,372.04 is: 711,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,102.96 : 1,304,242.32 = 515,372.04 : x
  2. Step 2: Convert to fraction form
    945,102.96/1,304,242.32 = 515,372.04/x
  3. Step 3: Cross multiply
    945,102.96x = 1,304,242.32 × 515,372.04
  4. Step 4: Simplify right side
    945,102.96x = 672,170,025,112.73
  5. Step 5: Solve for x
    x = 672,170,025,112.73/945,102.96
  6. Step 6: Final answer
    x = 711,213.54

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1.5x scale

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.