Home / 1,258,900-1,886,976.24-619,643.68

Finding the Fourth Proportional to 1,258,900, 1,886,976.24 and 619,643.68

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Solution

The fourth proportional to 1,258,900, 1,886,976.24 and 619,643.68 is: 928,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,900 : 1,886,976.24 = 619,643.68 : x
  2. Step 2: Convert to fraction form
    1,258,900/1,886,976.24 = 619,643.68/x
  3. Step 3: Cross multiply
    1,258,900x = 1,886,976.24 × 619,643.68
  4. Step 4: Simplify right side
    1,258,900x = 1,169,252,901,426.16
  5. Step 5: Solve for x
    x = 1,169,252,901,426.16/1,258,900
  6. Step 6: Final answer
    x = 928,789.34

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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.