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Finding the Fourth Proportional to 484,401.06, 668,488.14 and 280,433.14

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Solution

The fourth proportional to 484,401.06, 668,488.14 and 280,433.14 is: 387,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,401.06 : 668,488.14 = 280,433.14 : x
  2. Step 2: Convert to fraction form
    484,401.06/668,488.14 = 280,433.14/x
  3. Step 3: Cross multiply
    484,401.06x = 668,488.14 × 280,433.14
  4. Step 4: Simplify right side
    484,401.06x = 187,466,226,481.74
  5. Step 5: Solve for x
    x = 187,466,226,481.74/484,401.06
  6. Step 6: Final answer
    x = 387,006.23

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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.