Home / 494,404.08-739,834.62-428,073.18

Finding the Fourth Proportional to 494,404.08, 739,834.62 and 428,073.18

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Solution

The fourth proportional to 494,404.08, 739,834.62 and 428,073.18 is: 640,575.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,404.08 : 739,834.62 = 428,073.18 : x
  2. Step 2: Convert to fraction form
    494,404.08/739,834.62 = 428,073.18/x
  3. Step 3: Cross multiply
    494,404.08x = 739,834.62 × 428,073.18
  4. Step 4: Simplify right side
    494,404.08x = 316,703,358,457.49
  5. Step 5: Solve for x
    x = 316,703,358,457.49/494,404.08
  6. Step 6: Final answer
    x = 640,575.94

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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.