Home / 859,922.93-1,290,039.51-354,207.83

Finding the Fourth Proportional to 859,922.93, 1,290,039.51 and 354,207.83

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Solution

The fourth proportional to 859,922.93, 1,290,039.51 and 354,207.83 is: 531,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,922.93 : 1,290,039.51 = 354,207.83 : x
  2. Step 2: Convert to fraction form
    859,922.93/1,290,039.51 = 354,207.83/x
  3. Step 3: Cross multiply
    859,922.93x = 1,290,039.51 × 354,207.83
  4. Step 4: Simplify right side
    859,922.93x = 456,942,093,680.32
  5. Step 5: Solve for x
    x = 456,942,093,680.32/859,922.93
  6. Step 6: Final answer
    x = 531,375.64

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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.