Home / 945,372.54-1,304,618.13-515,661.90

Finding the Fourth Proportional to 945,372.54, 1,304,618.13 and 515,661.90

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Solution

The fourth proportional to 945,372.54, 1,304,618.13 and 515,661.90 is: 711,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,372.54 : 1,304,618.13 = 515,661.90 : x
  2. Step 2: Convert to fraction form
    945,372.54/1,304,618.13 = 515,661.90/x
  3. Step 3: Cross multiply
    945,372.54x = 1,304,618.13 × 515,661.90
  4. Step 4: Simplify right side
    945,372.54x = 672,741,863,690.25
  5. Step 5: Solve for x
    x = 672,741,863,690.25/945,372.54
  6. Step 6: Final answer
    x = 711,615.62

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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.