Home / 1,438,997.76-2,158,590-479,412.48

Finding the Fourth Proportional to 1,438,997.76, 2,158,590 and 479,412.48

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Solution

The fourth proportional to 1,438,997.76, 2,158,590 and 479,412.48 is: 719,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,997.76 : 2,158,590 = 479,412.48 : x
  2. Step 2: Convert to fraction form
    1,438,997.76/2,158,590 = 479,412.48/x
  3. Step 3: Cross multiply
    1,438,997.76x = 2,158,590 × 479,412.48
  4. Step 4: Simplify right side
    1,438,997.76x = 1,034,854,985,203.20
  5. Step 5: Solve for x
    x = 1,034,854,985,203.20/1,438,997.76
  6. Step 6: Final answer
    x = 719,149.82

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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.