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Finding the Fourth Proportional to 484,642.93, 668,870.04 and 277,991.95

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Solution

The fourth proportional to 484,642.93, 668,870.04 and 277,991.95 is: 383,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,642.93 : 668,870.04 = 277,991.95 : x
  2. Step 2: Convert to fraction form
    484,642.93/668,870.04 = 277,991.95/x
  3. Step 3: Cross multiply
    484,642.93x = 668,870.04 × 277,991.95
  4. Step 4: Simplify right side
    484,642.93x = 185,940,486,716.18
  5. Step 5: Solve for x
    x = 185,940,486,716.18/484,642.93
  6. Step 6: Final answer
    x = 383,664.91

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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.