Home / 1,579,280.72-2,179,407.39-854,128.43

Finding the Fourth Proportional to 1,579,280.72, 2,179,407.39 and 854,128.43

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Solution

The fourth proportional to 1,579,280.72, 2,179,407.39 and 854,128.43 is: 1,178,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,280.72 : 2,179,407.39 = 854,128.43 : x
  2. Step 2: Convert to fraction form
    1,579,280.72/2,179,407.39 = 854,128.43/x
  3. Step 3: Cross multiply
    1,579,280.72x = 2,179,407.39 × 854,128.43
  4. Step 4: Simplify right side
    1,579,280.72x = 1,861,493,814,596.63
  5. Step 5: Solve for x
    x = 1,861,493,814,596.63/1,579,280.72
  6. Step 6: Final answer
    x = 1,178,697.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.