Home / 743,213.68-1,114,843.66-353,634.72

Finding the Fourth Proportional to 743,213.68, 1,114,843.66 and 353,634.72

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Solution

The fourth proportional to 743,213.68, 1,114,843.66 and 353,634.72 is: 530,463.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,213.68 : 1,114,843.66 = 353,634.72 : x
  2. Step 2: Convert to fraction form
    743,213.68/1,114,843.66 = 353,634.72/x
  3. Step 3: Cross multiply
    743,213.68x = 1,114,843.66 × 353,634.72
  4. Step 4: Simplify right side
    743,213.68x = 394,247,425,547.88
  5. Step 5: Solve for x
    x = 394,247,425,547.88/743,213.68
  6. Step 6: Final answer
    x = 530,463.09

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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.