Home / 840,455.22-1,159,826.64-458,481.90

Finding the Fourth Proportional to 840,455.22, 1,159,826.64 and 458,481.90

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Solution

The fourth proportional to 840,455.22, 1,159,826.64 and 458,481.90 is: 632,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,455.22 : 1,159,826.64 = 458,481.90 : x
  2. Step 2: Convert to fraction form
    840,455.22/1,159,826.64 = 458,481.90/x
  3. Step 3: Cross multiply
    840,455.22x = 1,159,826.64 × 458,481.90
  4. Step 4: Simplify right side
    840,455.22x = 531,759,521,577.82
  5. Step 5: Solve for x
    x = 531,759,521,577.82/840,455.22
  6. Step 6: Final answer
    x = 632,704.17

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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.