Home / 494,533.30-743,440.20-429,579.40

Finding the Fourth Proportional to 494,533.30, 743,440.20 and 429,579.40

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Solution

The fourth proportional to 494,533.30, 743,440.20 and 429,579.40 is: 645,793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,533.30 : 743,440.20 = 429,579.40 : x
  2. Step 2: Convert to fraction form
    494,533.30/743,440.20 = 429,579.40/x
  3. Step 3: Cross multiply
    494,533.30x = 743,440.20 × 429,579.40
  4. Step 4: Simplify right side
    494,533.30x = 319,366,595,051.88
  5. Step 5: Solve for x
    x = 319,366,595,051.88/494,533.30
  6. Step 6: Final answer
    x = 645,793.91

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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.