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Finding the Fourth Proportional to 718,903.56, 1,078,493.58 and 275,637

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Solution

The fourth proportional to 718,903.56, 1,078,493.58 and 275,637 is: 413,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,903.56 : 1,078,493.58 = 275,637 : x
  2. Step 2: Convert to fraction form
    718,903.56/1,078,493.58 = 275,637/x
  3. Step 3: Cross multiply
    718,903.56x = 1,078,493.58 × 275,637
  4. Step 4: Simplify right side
    718,903.56x = 297,272,734,910.46
  5. Step 5: Solve for x
    x = 297,272,734,910.46/718,903.56
  6. Step 6: Final answer
    x = 413,508.50

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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.