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Finding the Fourth Proportional to 484,863.45, 669,199.77 and 281,044.77

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Solution

The fourth proportional to 484,863.45, 669,199.77 and 281,044.77 is: 387,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,863.45 : 669,199.77 = 281,044.77 : x
  2. Step 2: Convert to fraction form
    484,863.45/669,199.77 = 281,044.77/x
  3. Step 3: Cross multiply
    484,863.45x = 669,199.77 × 281,044.77
  4. Step 4: Simplify right side
    484,863.45x = 188,075,095,443.70
  5. Step 5: Solve for x
    x = 188,075,095,443.70/484,863.45
  6. Step 6: Final answer
    x = 387,892.91

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1.5x scale

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.