Home / 1,115,954.40-1,540,010.64-632,610.72

Finding the Fourth Proportional to 1,115,954.40, 1,540,010.64 and 632,610.72

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Solution

The fourth proportional to 1,115,954.40, 1,540,010.64 and 632,610.72 is: 872,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,954.40 : 1,540,010.64 = 632,610.72 : x
  2. Step 2: Convert to fraction form
    1,115,954.40/1,540,010.64 = 632,610.72/x
  3. Step 3: Cross multiply
    1,115,954.40x = 1,540,010.64 × 632,610.72
  4. Step 4: Simplify right side
    1,115,954.40x = 974,227,239,778.06
  5. Step 5: Solve for x
    x = 974,227,239,778.06/1,115,954.40
  6. Step 6: Final answer
    x = 872,999.15

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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.