Home / 753,915.12-1,040,389.44-414,383.28

Finding the Fourth Proportional to 753,915.12, 1,040,389.44 and 414,383.28

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Solution

The fourth proportional to 753,915.12, 1,040,389.44 and 414,383.28 is: 571,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,915.12 : 1,040,389.44 = 414,383.28 : x
  2. Step 2: Convert to fraction form
    753,915.12/1,040,389.44 = 414,383.28/x
  3. Step 3: Cross multiply
    753,915.12x = 1,040,389.44 × 414,383.28
  4. Step 4: Simplify right side
    753,915.12x = 431,119,988,624.56
  5. Step 5: Solve for x
    x = 431,119,988,624.56/753,915.12
  6. Step 6: Final answer
    x = 571,841.55

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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.