Home / 840,414.51-1,159,780.41-458,449.29

Finding the Fourth Proportional to 840,414.51, 1,159,780.41 and 458,449.29

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Solution

The fourth proportional to 840,414.51, 1,159,780.41 and 458,449.29 is: 632,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,414.51 : 1,159,780.41 = 458,449.29 : x
  2. Step 2: Convert to fraction form
    840,414.51/1,159,780.41 = 458,449.29/x
  3. Step 3: Cross multiply
    840,414.51x = 1,159,780.41 × 458,449.29
  4. Step 4: Simplify right side
    840,414.51x = 531,700,505,520.41
  5. Step 5: Solve for x
    x = 531,700,505,520.41/840,414.51
  6. Step 6: Final answer
    x = 632,664.59

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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.