Home / 1,122,757.80-1,684,136.70-324,065.40

Finding the Fourth Proportional to 1,122,757.80, 1,684,136.70 and 324,065.40

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Solution

The fourth proportional to 1,122,757.80, 1,684,136.70 and 324,065.40 is: 486,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,757.80 : 1,684,136.70 = 324,065.40 : x
  2. Step 2: Convert to fraction form
    1,122,757.80/1,684,136.70 = 324,065.40/x
  3. Step 3: Cross multiply
    1,122,757.80x = 1,684,136.70 × 324,065.40
  4. Step 4: Simplify right side
    1,122,757.80x = 545,770,433,340.18
  5. Step 5: Solve for x
    x = 545,770,433,340.18/1,122,757.80
  6. Step 6: Final answer
    x = 486,098.10

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Double scale
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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.