Home / 685,735.69-1,028,521.62-180,336.06

Finding the Fourth Proportional to 685,735.69, 1,028,521.62 and 180,336.06

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Solution

The fourth proportional to 685,735.69, 1,028,521.62 and 180,336.06 is: 270,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,735.69 : 1,028,521.62 = 180,336.06 : x
  2. Step 2: Convert to fraction form
    685,735.69/1,028,521.62 = 180,336.06/x
  3. Step 3: Cross multiply
    685,735.69x = 1,028,521.62 × 180,336.06
  4. Step 4: Simplify right side
    685,735.69x = 185,479,536,575.62
  5. Step 5: Solve for x
    x = 185,479,536,575.62/685,735.69
  6. Step 6: Final answer
    x = 270,482.55

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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.