Home / 2,879,892.80-4,318,672.80-985,659.20

Finding the Fourth Proportional to 2,879,892.80, 4,318,672.80 and 985,659.20

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Solution

The fourth proportional to 2,879,892.80, 4,318,672.80 and 985,659.20 is: 1,478,089.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879,892.80 : 4,318,672.80 = 985,659.20 : x
  2. Step 2: Convert to fraction form
    2,879,892.80/4,318,672.80 = 985,659.20/x
  3. Step 3: Cross multiply
    2,879,892.80x = 4,318,672.80 × 985,659.20
  4. Step 4: Simplify right side
    2,879,892.80x = 4,256,739,577,109.76
  5. Step 5: Solve for x
    x = 4,256,739,577,109.76/2,879,892.80
  6. Step 6: Final answer
    x = 1,478,089.59

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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.