Home / 718,203.90-1,078,526.11-479,849.49

Finding the Fourth Proportional to 718,203.90, 1,078,526.11 and 479,849.49

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Solution

The fourth proportional to 718,203.90, 1,078,526.11 and 479,849.49 is: 720,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,203.90 : 1,078,526.11 = 479,849.49 : x
  2. Step 2: Convert to fraction form
    718,203.90/1,078,526.11 = 479,849.49/x
  3. Step 3: Cross multiply
    718,203.90x = 1,078,526.11 × 479,849.49
  4. Step 4: Simplify right side
    718,203.90x = 517,530,196,043.31
  5. Step 5: Solve for x
    x = 517,530,196,043.31/718,203.90
  6. Step 6: Final answer
    x = 720,589.51

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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.