Home / 728,052.60-1,091,819.70-328,884.60

Finding the Fourth Proportional to 728,052.60, 1,091,819.70 and 328,884.60

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Solution

The fourth proportional to 728,052.60, 1,091,819.70 and 328,884.60 is: 493,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,052.60 : 1,091,819.70 = 328,884.60 : x
  2. Step 2: Convert to fraction form
    728,052.60/1,091,819.70 = 328,884.60/x
  3. Step 3: Cross multiply
    728,052.60x = 1,091,819.70 × 328,884.60
  4. Step 4: Simplify right side
    728,052.60x = 359,082,685,306.62
  5. Step 5: Solve for x
    x = 359,082,685,306.62/728,052.60
  6. Step 6: Final answer
    x = 493,209.81

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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.