Home / 858,757.70-1,288,136.55-699,325.40

Finding the Fourth Proportional to 858,757.70, 1,288,136.55 and 699,325.40

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Solution

The fourth proportional to 858,757.70, 1,288,136.55 and 699,325.40 is: 1,048,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,757.70 : 1,288,136.55 = 699,325.40 : x
  2. Step 2: Convert to fraction form
    858,757.70/1,288,136.55 = 699,325.40/x
  3. Step 3: Cross multiply
    858,757.70x = 1,288,136.55 × 699,325.40
  4. Step 4: Simplify right side
    858,757.70x = 900,826,608,083.37
  5. Step 5: Solve for x
    x = 900,826,608,083.37/858,757.70
  6. Step 6: Final answer
    x = 1,048,988.10

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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.