Home / 490,441.87-676,870.23-275,577.25

Finding the Fourth Proportional to 490,441.87, 676,870.23 and 275,577.25

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Solution

The fourth proportional to 490,441.87, 676,870.23 and 275,577.25 is: 380,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,441.87 : 676,870.23 = 275,577.25 : x
  2. Step 2: Convert to fraction form
    490,441.87/676,870.23 = 275,577.25/x
  3. Step 3: Cross multiply
    490,441.87x = 676,870.23 × 275,577.25
  4. Step 4: Simplify right side
    490,441.87x = 186,530,036,590.27
  5. Step 5: Solve for x
    x = 186,530,036,590.27/490,441.87
  6. Step 6: Final answer
    x = 380,330.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.