Home / 645,910.70-967,116.45-505,942.70

Finding the Fourth Proportional to 645,910.70, 967,116.45 and 505,942.70

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Solution

The fourth proportional to 645,910.70, 967,116.45 and 505,942.70 is: 757,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,910.70 : 967,116.45 = 505,942.70 : x
  2. Step 2: Convert to fraction form
    645,910.70/967,116.45 = 505,942.70/x
  3. Step 3: Cross multiply
    645,910.70x = 967,116.45 × 505,942.70
  4. Step 4: Simplify right side
    645,910.70x = 489,305,507,927.42
  5. Step 5: Solve for x
    x = 489,305,507,927.42/645,910.70
  6. Step 6: Final answer
    x = 757,543.59

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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.