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Finding the Fourth Proportional to 655,161.84, 980,917.92 and 334,619.64

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Solution

The fourth proportional to 655,161.84, 980,917.92 and 334,619.64 is: 500,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,161.84 : 980,917.92 = 334,619.64 : x
  2. Step 2: Convert to fraction form
    655,161.84/980,917.92 = 334,619.64/x
  3. Step 3: Cross multiply
    655,161.84x = 980,917.92 × 334,619.64
  4. Step 4: Simplify right side
    655,161.84x = 328,234,401,259.95
  5. Step 5: Solve for x
    x = 328,234,401,259.95/655,161.84
  6. Step 6: Final answer
    x = 500,997.43

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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.