Home / 945,372.78-1,304,632.05-515,668.32

Finding the Fourth Proportional to 945,372.78, 1,304,632.05 and 515,668.32

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Solution

The fourth proportional to 945,372.78, 1,304,632.05 and 515,668.32 is: 711,631.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,372.78 : 1,304,632.05 = 515,668.32 : x
  2. Step 2: Convert to fraction form
    945,372.78/1,304,632.05 = 515,668.32/x
  3. Step 3: Cross multiply
    945,372.78x = 1,304,632.05 × 515,668.32
  4. Step 4: Simplify right side
    945,372.78x = 672,757,417,441.66
  5. Step 5: Solve for x
    x = 672,757,417,441.66/945,372.78
  6. Step 6: Final answer
    x = 711,631.89

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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.