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Finding the Fourth Proportional to 642,597.96, 963,889.56 and 263,433.96

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Solution

The fourth proportional to 642,597.96, 963,889.56 and 263,433.96 is: 395,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,597.96 : 963,889.56 = 263,433.96 : x
  2. Step 2: Convert to fraction form
    642,597.96/963,889.56 = 263,433.96/x
  3. Step 3: Cross multiply
    642,597.96x = 963,889.56 × 263,433.96
  4. Step 4: Simplify right side
    642,597.96x = 253,921,243,793.46
  5. Step 5: Solve for x
    x = 253,921,243,793.46/642,597.96
  6. Step 6: Final answer
    x = 395,147.91

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1.5x scale

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.