Home / 680,104.82-1,020,281.77-280,527.62

Finding the Fourth Proportional to 680,104.82, 1,020,281.77 and 280,527.62

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Solution

The fourth proportional to 680,104.82, 1,020,281.77 and 280,527.62 is: 420,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,104.82 : 1,020,281.77 = 280,527.62 : x
  2. Step 2: Convert to fraction form
    680,104.82/1,020,281.77 = 280,527.62/x
  3. Step 3: Cross multiply
    680,104.82x = 1,020,281.77 × 280,527.62
  4. Step 4: Simplify right side
    680,104.82x = 286,217,211,566.08
  5. Step 5: Solve for x
    x = 286,217,211,566.08/680,104.82
  6. Step 6: Final answer
    x = 420,842.79

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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.