Home / 1,228,808.96-1,695,764.08-684,979.28

Finding the Fourth Proportional to 1,228,808.96, 1,695,764.08 and 684,979.28

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Solution

The fourth proportional to 1,228,808.96, 1,695,764.08 and 684,979.28 is: 945,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,808.96 : 1,695,764.08 = 684,979.28 : x
  2. Step 2: Convert to fraction form
    1,228,808.96/1,695,764.08 = 684,979.28/x
  3. Step 3: Cross multiply
    1,228,808.96x = 1,695,764.08 × 684,979.28
  4. Step 4: Simplify right side
    1,228,808.96x = 1,161,563,258,568.26
  5. Step 5: Solve for x
    x = 1,161,563,258,568.26/1,228,808.96
  6. Step 6: Final answer
    x = 945,275.71

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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.