Home / 642,054.20-962,390.10-242,540.60

Finding the Fourth Proportional to 642,054.20, 962,390.10 and 242,540.60

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Solution

The fourth proportional to 642,054.20, 962,390.10 and 242,540.60 is: 363,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,054.20 : 962,390.10 = 242,540.60 : x
  2. Step 2: Convert to fraction form
    642,054.20/962,390.10 = 242,540.60/x
  3. Step 3: Cross multiply
    642,054.20x = 962,390.10 × 242,540.60
  4. Step 4: Simplify right side
    642,054.20x = 233,418,672,288.06
  5. Step 5: Solve for x
    x = 233,418,672,288.06/642,054.20
  6. Step 6: Final answer
    x = 363,549.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.