Home / 680,763.56-1,021,144.86-306,349.16

Finding the Fourth Proportional to 680,763.56, 1,021,144.86 and 306,349.16

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Solution

The fourth proportional to 680,763.56, 1,021,144.86 and 306,349.16 is: 459,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,763.56 : 1,021,144.86 = 306,349.16 : x
  2. Step 2: Convert to fraction form
    680,763.56/1,021,144.86 = 306,349.16/x
  3. Step 3: Cross multiply
    680,763.56x = 1,021,144.86 × 306,349.16
  4. Step 4: Simplify right side
    680,763.56x = 312,826,870,099.32
  5. Step 5: Solve for x
    x = 312,826,870,099.32/680,763.56
  6. Step 6: Final answer
    x = 459,523.52

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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.