Home / 879,104.56-1,318,642.96-280,060.60

Finding the Fourth Proportional to 879,104.56, 1,318,642.96 and 280,060.60

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Solution

The fourth proportional to 879,104.56, 1,318,642.96 and 280,060.60 is: 420,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,104.56 : 1,318,642.96 = 280,060.60 : x
  2. Step 2: Convert to fraction form
    879,104.56/1,318,642.96 = 280,060.60/x
  3. Step 3: Cross multiply
    879,104.56x = 1,318,642.96 × 280,060.60
  4. Step 4: Simplify right side
    879,104.56x = 369,299,938,563.38
  5. Step 5: Solve for x
    x = 369,299,938,563.38/879,104.56
  6. Step 6: Final answer
    x = 420,086.48

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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.