Home / 484,726.36-668,749.26-280,665.91

Finding the Fourth Proportional to 484,726.36, 668,749.26 and 280,665.91

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Solution

The fourth proportional to 484,726.36, 668,749.26 and 280,665.91 is: 387,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,726.36 : 668,749.26 = 280,665.91 : x
  2. Step 2: Convert to fraction form
    484,726.36/668,749.26 = 280,665.91/x
  3. Step 3: Cross multiply
    484,726.36x = 668,749.26 × 280,665.91
  4. Step 4: Simplify right side
    484,726.36x = 187,695,119,619.73
  5. Step 5: Solve for x
    x = 187,695,119,619.73/484,726.36
  6. Step 6: Final answer
    x = 387,218.72

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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.