Home / 757,986.60-1,136,979.90-664,674.60

Finding the Fourth Proportional to 757,986.60, 1,136,979.90 and 664,674.60

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Solution

The fourth proportional to 757,986.60, 1,136,979.90 and 664,674.60 is: 997,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,986.60 : 1,136,979.90 = 664,674.60 : x
  2. Step 2: Convert to fraction form
    757,986.60/1,136,979.90 = 664,674.60/x
  3. Step 3: Cross multiply
    757,986.60x = 1,136,979.90 × 664,674.60
  4. Step 4: Simplify right side
    757,986.60x = 755,721,660,240.54
  5. Step 5: Solve for x
    x = 755,721,660,240.54/757,986.60
  6. Step 6: Final answer
    x = 997,011.90

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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.