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Finding the Fourth Proportional to 627,645.66, 941,460.30 and 154,335.12

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Solution

The fourth proportional to 627,645.66, 941,460.30 and 154,335.12 is: 231,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,645.66 : 941,460.30 = 154,335.12 : x
  2. Step 2: Convert to fraction form
    627,645.66/941,460.30 = 154,335.12/x
  3. Step 3: Cross multiply
    627,645.66x = 941,460.30 × 154,335.12
  4. Step 4: Simplify right side
    627,645.66x = 145,300,388,375.74
  5. Step 5: Solve for x
    x = 145,300,388,375.74/627,645.66
  6. Step 6: Final answer
    x = 231,500.67

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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.