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Finding the Fourth Proportional to 484,406.06, 668,486.41 and 266,639.90

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Solution

The fourth proportional to 484,406.06, 668,486.41 and 266,639.90 is: 367,966.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,406.06 : 668,486.41 = 266,639.90 : x
  2. Step 2: Convert to fraction form
    484,406.06/668,486.41 = 266,639.90/x
  3. Step 3: Cross multiply
    484,406.06x = 668,486.41 × 266,639.90
  4. Step 4: Simplify right side
    484,406.06x = 178,245,145,504.73
  5. Step 5: Solve for x
    x = 178,245,145,504.73/484,406.06
  6. Step 6: Final answer
    x = 367,966.39

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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.