Home / 1,285,591.32-1,928,406.44-486,658.36

Finding the Fourth Proportional to 1,285,591.32, 1,928,406.44 and 486,658.36

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Solution

The fourth proportional to 1,285,591.32, 1,928,406.44 and 486,658.36 is: 729,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,591.32 : 1,928,406.44 = 486,658.36 : x
  2. Step 2: Convert to fraction form
    1,285,591.32/1,928,406.44 = 486,658.36/x
  3. Step 3: Cross multiply
    1,285,591.32x = 1,928,406.44 × 486,658.36
  4. Step 4: Simplify right side
    1,285,591.32x = 938,475,115,503.84
  5. Step 5: Solve for x
    x = 938,475,115,503.84/1,285,591.32
  6. Step 6: Final answer
    x = 729,994.91

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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.