Home / 753,086.40-1,129,629.60-453,904.80

Finding the Fourth Proportional to 753,086.40, 1,129,629.60 and 453,904.80

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Solution

The fourth proportional to 753,086.40, 1,129,629.60 and 453,904.80 is: 680,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,086.40 : 1,129,629.60 = 453,904.80 : x
  2. Step 2: Convert to fraction form
    753,086.40/1,129,629.60 = 453,904.80/x
  3. Step 3: Cross multiply
    753,086.40x = 1,129,629.60 × 453,904.80
  4. Step 4: Simplify right side
    753,086.40x = 512,744,297,662.08
  5. Step 5: Solve for x
    x = 512,744,297,662.08/753,086.40
  6. Step 6: Final answer
    x = 680,857.20

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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.