Home / 494,872.20-742,308.30-317,725.20

Finding the Fourth Proportional to 494,872.20, 742,308.30 and 317,725.20

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Solution

The fourth proportional to 494,872.20, 742,308.30 and 317,725.20 is: 476,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,872.20 : 742,308.30 = 317,725.20 : x
  2. Step 2: Convert to fraction form
    494,872.20/742,308.30 = 317,725.20/x
  3. Step 3: Cross multiply
    494,872.20x = 742,308.30 × 317,725.20
  4. Step 4: Simplify right side
    494,872.20x = 235,850,053,079.16
  5. Step 5: Solve for x
    x = 235,850,053,079.16/494,872.20
  6. Step 6: Final answer
    x = 476,587.80

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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.