Home / 920,087.92-1,269,632.26-678,500.56

Finding the Fourth Proportional to 920,087.92, 1,269,632.26 and 678,500.56

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Solution

The fourth proportional to 920,087.92, 1,269,632.26 and 678,500.56 is: 936,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,087.92 : 1,269,632.26 = 678,500.56 : x
  2. Step 2: Convert to fraction form
    920,087.92/1,269,632.26 = 678,500.56/x
  3. Step 3: Cross multiply
    920,087.92x = 1,269,632.26 × 678,500.56
  4. Step 4: Simplify right side
    920,087.92x = 861,446,199,404.07
  5. Step 5: Solve for x
    x = 861,446,199,404.07/920,087.92
  6. Step 6: Final answer
    x = 936,265.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.