Home / 768,276.30-1,152,414.45-324,986.70

Finding the Fourth Proportional to 768,276.30, 1,152,414.45 and 324,986.70

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Solution

The fourth proportional to 768,276.30, 1,152,414.45 and 324,986.70 is: 487,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,276.30 : 1,152,414.45 = 324,986.70 : x
  2. Step 2: Convert to fraction form
    768,276.30/1,152,414.45 = 324,986.70/x
  3. Step 3: Cross multiply
    768,276.30x = 1,152,414.45 × 324,986.70
  4. Step 4: Simplify right side
    768,276.30x = 374,519,369,137.82
  5. Step 5: Solve for x
    x = 374,519,369,137.82/768,276.30
  6. Step 6: Final answer
    x = 487,480.05

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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.