Home / 789,643.20-1,184,464.80-485,212.80

Finding the Fourth Proportional to 789,643.20, 1,184,464.80 and 485,212.80

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Solution

The fourth proportional to 789,643.20, 1,184,464.80 and 485,212.80 is: 727,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,643.20 : 1,184,464.80 = 485,212.80 : x
  2. Step 2: Convert to fraction form
    789,643.20/1,184,464.80 = 485,212.80/x
  3. Step 3: Cross multiply
    789,643.20x = 1,184,464.80 × 485,212.80
  4. Step 4: Simplify right side
    789,643.20x = 574,717,482,109.44
  5. Step 5: Solve for x
    x = 574,717,482,109.44/789,643.20
  6. Step 6: Final answer
    x = 727,819.20

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1.5x scale

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.