Home / 1,144,606.72-1,718,595.36-640,156

Finding the Fourth Proportional to 1,144,606.72, 1,718,595.36 and 640,156

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Solution

The fourth proportional to 1,144,606.72, 1,718,595.36 and 640,156 is: 961,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,606.72 : 1,718,595.36 = 640,156 : x
  2. Step 2: Convert to fraction form
    1,144,606.72/1,718,595.36 = 640,156/x
  3. Step 3: Cross multiply
    1,144,606.72x = 1,718,595.36 × 640,156
  4. Step 4: Simplify right side
    1,144,606.72x = 1,100,169,131,276.16
  5. Step 5: Solve for x
    x = 1,100,169,131,276.16/1,144,606.72
  6. Step 6: Final answer
    x = 961,176.54

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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.