Home / 1,131,939.50-1,697,498.16-619,984.68

Finding the Fourth Proportional to 1,131,939.50, 1,697,498.16 and 619,984.68

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Solution

The fourth proportional to 1,131,939.50, 1,697,498.16 and 619,984.68 is: 929,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,939.50 : 1,697,498.16 = 619,984.68 : x
  2. Step 2: Convert to fraction form
    1,131,939.50/1,697,498.16 = 619,984.68/x
  3. Step 3: Cross multiply
    1,131,939.50x = 1,697,498.16 × 619,984.68
  4. Step 4: Simplify right side
    1,131,939.50x = 1,052,422,853,528.19
  5. Step 5: Solve for x
    x = 1,052,422,853,528.19/1,131,939.50
  6. Step 6: Final answer
    x = 929,751.86

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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.