Home / 1,149,005.25-1,585,676.45-639,707.63

Finding the Fourth Proportional to 1,149,005.25, 1,585,676.45 and 639,707.63

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Solution

The fourth proportional to 1,149,005.25, 1,585,676.45 and 639,707.63 is: 882,823.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,005.25 : 1,585,676.45 = 639,707.63 : x
  2. Step 2: Convert to fraction form
    1,149,005.25/1,585,676.45 = 639,707.63/x
  3. Step 3: Cross multiply
    1,149,005.25x = 1,585,676.45 × 639,707.63
  4. Step 4: Simplify right side
    1,149,005.25x = 1,014,369,317,447.20
  5. Step 5: Solve for x
    x = 1,014,369,317,447.20/1,149,005.25
  6. Step 6: Final answer
    x = 882,823.92

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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.