Home / 1,285,940.40-1,928,327.40-486,956.40

Finding the Fourth Proportional to 1,285,940.40, 1,928,327.40 and 486,956.40

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Solution

The fourth proportional to 1,285,940.40, 1,928,327.40 and 486,956.40 is: 730,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,940.40 : 1,928,327.40 = 486,956.40 : x
  2. Step 2: Convert to fraction form
    1,285,940.40/1,928,327.40 = 486,956.40/x
  3. Step 3: Cross multiply
    1,285,940.40x = 1,928,327.40 × 486,956.40
  4. Step 4: Simplify right side
    1,285,940.40x = 939,011,368,725.36
  5. Step 5: Solve for x
    x = 939,011,368,725.36/1,285,940.40
  6. Step 6: Final answer
    x = 730,213.76

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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.