Home / 768,060.52-1,059,923.60-428,528.80

Finding the Fourth Proportional to 768,060.52, 1,059,923.60 and 428,528.80

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Solution

The fourth proportional to 768,060.52, 1,059,923.60 and 428,528.80 is: 591,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,060.52 : 1,059,923.60 = 428,528.80 : x
  2. Step 2: Convert to fraction form
    768,060.52/1,059,923.60 = 428,528.80/x
  3. Step 3: Cross multiply
    768,060.52x = 1,059,923.60 × 428,528.80
  4. Step 4: Simplify right side
    768,060.52x = 454,207,788,399.68
  5. Step 5: Solve for x
    x = 454,207,788,399.68/768,060.52
  6. Step 6: Final answer
    x = 591,369.79

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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.