Home / 1,081,171.76-1,492,253.88-628,723.76

Finding the Fourth Proportional to 1,081,171.76, 1,492,253.88 and 628,723.76

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Solution

The fourth proportional to 1,081,171.76, 1,492,253.88 and 628,723.76 is: 867,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,171.76 : 1,492,253.88 = 628,723.76 : x
  2. Step 2: Convert to fraction form
    1,081,171.76/1,492,253.88 = 628,723.76/x
  3. Step 3: Cross multiply
    1,081,171.76x = 1,492,253.88 × 628,723.76
  4. Step 4: Simplify right side
    1,081,171.76x = 938,215,470,308.19
  5. Step 5: Solve for x
    x = 938,215,470,308.19/1,081,171.76
  6. Step 6: Final answer
    x = 867,776.52

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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.