Home / 1,127,206.57-1,555,378.94-685,455.79

Finding the Fourth Proportional to 1,127,206.57, 1,555,378.94 and 685,455.79

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Solution

The fourth proportional to 1,127,206.57, 1,555,378.94 and 685,455.79 is: 945,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,206.57 : 1,555,378.94 = 685,455.79 : x
  2. Step 2: Convert to fraction form
    1,127,206.57/1,555,378.94 = 685,455.79/x
  3. Step 3: Cross multiply
    1,127,206.57x = 1,555,378.94 × 685,455.79
  4. Step 4: Simplify right side
    1,127,206.57x = 1,066,143,492,290.17
  5. Step 5: Solve for x
    x = 1,066,143,492,290.17/1,127,206.57
  6. Step 6: Final answer
    x = 945,827.97

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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.