Home / 820,086.85-1,130,714.40-674,383.44

Finding the Fourth Proportional to 820,086.85, 1,130,714.40 and 674,383.44

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Solution

The fourth proportional to 820,086.85, 1,130,714.40 and 674,383.44 is: 929,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,086.85 : 1,130,714.40 = 674,383.44 : x
  2. Step 2: Convert to fraction form
    820,086.85/1,130,714.40 = 674,383.44/x
  3. Step 3: Cross multiply
    820,086.85x = 1,130,714.40 × 674,383.44
  4. Step 4: Simplify right side
    820,086.85x = 762,535,066,729.54
  5. Step 5: Solve for x
    x = 762,535,066,729.54/820,086.85
  6. Step 6: Final answer
    x = 929,822.33

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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.