Home / 1,162,402.89-1,604,135.32-639,135.60

Finding the Fourth Proportional to 1,162,402.89, 1,604,135.32 and 639,135.60

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Solution

The fourth proportional to 1,162,402.89, 1,604,135.32 and 639,135.60 is: 882,017.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,402.89 : 1,604,135.32 = 639,135.60 : x
  2. Step 2: Convert to fraction form
    1,162,402.89/1,604,135.32 = 639,135.60/x
  3. Step 3: Cross multiply
    1,162,402.89x = 1,604,135.32 × 639,135.60
  4. Step 4: Simplify right side
    1,162,402.89x = 1,025,259,990,229.39
  5. Step 5: Solve for x
    x = 1,025,259,990,229.39/1,162,402.89
  6. Step 6: Final answer
    x = 882,017.76

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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.