Home / 809,050.40-1,212,409.20-359,403.20

Finding the Fourth Proportional to 809,050.40, 1,212,409.20 and 359,403.20

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Solution

The fourth proportional to 809,050.40, 1,212,409.20 and 359,403.20 is: 538,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,050.40 : 1,212,409.20 = 359,403.20 : x
  2. Step 2: Convert to fraction form
    809,050.40/1,212,409.20 = 359,403.20/x
  3. Step 3: Cross multiply
    809,050.40x = 1,212,409.20 × 359,403.20
  4. Step 4: Simplify right side
    809,050.40x = 435,743,746,189.44
  5. Step 5: Solve for x
    x = 435,743,746,189.44/809,050.40
  6. Step 6: Final answer
    x = 538,586.65

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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.