Home / 786,056.88-1,179,334.62-280,606.76

Finding the Fourth Proportional to 786,056.88, 1,179,334.62 and 280,606.76

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Solution

The fourth proportional to 786,056.88, 1,179,334.62 and 280,606.76 is: 420,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,056.88 : 1,179,334.62 = 280,606.76 : x
  2. Step 2: Convert to fraction form
    786,056.88/1,179,334.62 = 280,606.76/x
  3. Step 3: Cross multiply
    786,056.88x = 1,179,334.62 × 280,606.76
  4. Step 4: Simplify right side
    786,056.88x = 330,929,266,674.03
  5. Step 5: Solve for x
    x = 330,929,266,674.03/786,056.88
  6. Step 6: Final answer
    x = 420,999.14

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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.