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Finding the Fourth Proportional to 608,604.45, 912,989.75 and 253,535.43

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Solution

The fourth proportional to 608,604.45, 912,989.75 and 253,535.43 is: 380,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,604.45 : 912,989.75 = 253,535.43 : x
  2. Step 2: Convert to fraction form
    608,604.45/912,989.75 = 253,535.43/x
  3. Step 3: Cross multiply
    608,604.45x = 912,989.75 × 253,535.43
  4. Step 4: Simplify right side
    608,604.45x = 231,475,252,909.39
  5. Step 5: Solve for x
    x = 231,475,252,909.39/608,604.45
  6. Step 6: Final answer
    x = 380,337.76

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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.