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Finding the Fourth Proportional to 655,190.46, 982,329.69 and 290,253.87

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Solution

The fourth proportional to 655,190.46, 982,329.69 and 290,253.87 is: 435,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,190.46 : 982,329.69 = 290,253.87 : x
  2. Step 2: Convert to fraction form
    655,190.46/982,329.69 = 290,253.87/x
  3. Step 3: Cross multiply
    655,190.46x = 982,329.69 × 290,253.87
  4. Step 4: Simplify right side
    655,190.46x = 285,124,994,138.40
  5. Step 5: Solve for x
    x = 285,124,994,138.40/655,190.46
  6. Step 6: Final answer
    x = 435,178.79

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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.