Home / 763,375.20-1,144,717.20-289,903.20

Finding the Fourth Proportional to 763,375.20, 1,144,717.20 and 289,903.20

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Solution

The fourth proportional to 763,375.20, 1,144,717.20 and 289,903.20 is: 434,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,375.20 : 1,144,717.20 = 289,903.20 : x
  2. Step 2: Convert to fraction form
    763,375.20/1,144,717.20 = 289,903.20/x
  3. Step 3: Cross multiply
    763,375.20x = 1,144,717.20 × 289,903.20
  4. Step 4: Simplify right side
    763,375.20x = 331,857,179,375.04
  5. Step 5: Solve for x
    x = 331,857,179,375.04/763,375.20
  6. Step 6: Final answer
    x = 434,723.55

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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.