Home / 813,500.57-1,219,390.49-300,836.27

Finding the Fourth Proportional to 813,500.57, 1,219,390.49 and 300,836.27

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Solution

The fourth proportional to 813,500.57, 1,219,390.49 and 300,836.27 is: 450,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,500.57 : 1,219,390.49 = 300,836.27 : x
  2. Step 2: Convert to fraction form
    813,500.57/1,219,390.49 = 300,836.27/x
  3. Step 3: Cross multiply
    813,500.57x = 1,219,390.49 × 300,836.27
  4. Step 4: Simplify right side
    813,500.57x = 366,836,890,485.64
  5. Step 5: Solve for x
    x = 366,836,890,485.64/813,500.57
  6. Step 6: Final answer
    x = 450,936.25

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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.