Home / 821,714.64-1,133,963.82-454,189.32

Finding the Fourth Proportional to 821,714.64, 1,133,963.82 and 454,189.32

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Solution

The fourth proportional to 821,714.64, 1,133,963.82 and 454,189.32 is: 626,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,714.64 : 1,133,963.82 = 454,189.32 : x
  2. Step 2: Convert to fraction form
    821,714.64/1,133,963.82 = 454,189.32/x
  3. Step 3: Cross multiply
    821,714.64x = 1,133,963.82 × 454,189.32
  4. Step 4: Simplify right side
    821,714.64x = 515,034,256,310.40
  5. Step 5: Solve for x
    x = 515,034,256,310.40/821,714.64
  6. Step 6: Final answer
    x = 626,779.94

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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.