Home / 769,231.80-1,153,847.70-680,658.30

Finding the Fourth Proportional to 769,231.80, 1,153,847.70 and 680,658.30

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Solution

The fourth proportional to 769,231.80, 1,153,847.70 and 680,658.30 is: 1,020,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,231.80 : 1,153,847.70 = 680,658.30 : x
  2. Step 2: Convert to fraction form
    769,231.80/1,153,847.70 = 680,658.30/x
  3. Step 3: Cross multiply
    769,231.80x = 1,153,847.70 × 680,658.30
  4. Step 4: Simplify right side
    769,231.80x = 785,376,013,940.91
  5. Step 5: Solve for x
    x = 785,376,013,940.91/769,231.80
  6. Step 6: Final answer
    x = 1,020,987.45

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Similar ratio
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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.