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Finding the Fourth Proportional to 418,559.56, 627,841.77 and 103,014.34

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Solution

The fourth proportional to 418,559.56, 627,841.77 and 103,014.34 is: 154,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,559.56 : 627,841.77 = 103,014.34 : x
  2. Step 2: Convert to fraction form
    418,559.56/627,841.77 = 103,014.34/x
  3. Step 3: Cross multiply
    418,559.56x = 627,841.77 × 103,014.34
  4. Step 4: Simplify right side
    418,559.56x = 64,676,705,560.98
  5. Step 5: Solve for x
    x = 64,676,705,560.98/418,559.56
  6. Step 6: Final answer
    x = 154,522.11

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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.