Home / 642,604.60-963,734.10-268,550.20

Finding the Fourth Proportional to 642,604.60, 963,734.10 and 268,550.20

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Solution

The fourth proportional to 642,604.60, 963,734.10 and 268,550.20 is: 402,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,604.60 : 963,734.10 = 268,550.20 : x
  2. Step 2: Convert to fraction form
    642,604.60/963,734.10 = 268,550.20/x
  3. Step 3: Cross multiply
    642,604.60x = 963,734.10 × 268,550.20
  4. Step 4: Simplify right side
    642,604.60x = 258,810,985,301.82
  5. Step 5: Solve for x
    x = 258,810,985,301.82/642,604.60
  6. Step 6: Final answer
    x = 402,753.09

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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.