Home / 1,286,905.82-1,929,166.79-476,838.88

Finding the Fourth Proportional to 1,286,905.82, 1,929,166.79 and 476,838.88

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Solution

The fourth proportional to 1,286,905.82, 1,929,166.79 and 476,838.88 is: 714,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,905.82 : 1,929,166.79 = 476,838.88 : x
  2. Step 2: Convert to fraction form
    1,286,905.82/1,929,166.79 = 476,838.88/x
  3. Step 3: Cross multiply
    1,286,905.82x = 1,929,166.79 × 476,838.88
  4. Step 4: Simplify right side
    1,286,905.82x = 919,901,724,269.68
  5. Step 5: Solve for x
    x = 919,901,724,269.68/1,286,905.82
  6. Step 6: Final answer
    x = 714,816.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.