Home / 494,532.30-743,438.70-429,578.40

Finding the Fourth Proportional to 494,532.30, 743,438.70 and 429,578.40

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Solution

The fourth proportional to 494,532.30, 743,438.70 and 429,578.40 is: 645,792.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,532.30 : 743,438.70 = 429,578.40 : x
  2. Step 2: Convert to fraction form
    494,532.30/743,438.70 = 429,578.40/x
  3. Step 3: Cross multiply
    494,532.30x = 743,438.70 × 429,578.40
  4. Step 4: Simplify right side
    494,532.30x = 319,365,207,244.08
  5. Step 5: Solve for x
    x = 319,365,207,244.08/494,532.30
  6. Step 6: Final answer
    x = 645,792.41

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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.