Home / 786,056.26-1,179,333.60-280,606.40

Finding the Fourth Proportional to 786,056.26, 1,179,333.60 and 280,606.40

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Solution

The fourth proportional to 786,056.26, 1,179,333.60 and 280,606.40 is: 420,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,056.26 : 1,179,333.60 = 280,606.40 : x
  2. Step 2: Convert to fraction form
    786,056.26/1,179,333.60 = 280,606.40/x
  3. Step 3: Cross multiply
    786,056.26x = 1,179,333.60 × 280,606.40
  4. Step 4: Simplify right side
    786,056.26x = 330,928,555,895.04
  5. Step 5: Solve for x
    x = 330,928,555,895.04/786,056.26
  6. Step 6: Final answer
    x = 420,998.56

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1.5x scale

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.