Home / 1,289,190.98-1,933,122.47-578,609.86

Finding the Fourth Proportional to 1,289,190.98, 1,933,122.47 and 578,609.86

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Solution

The fourth proportional to 1,289,190.98, 1,933,122.47 and 578,609.86 is: 867,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,190.98 : 1,933,122.47 = 578,609.86 : x
  2. Step 2: Convert to fraction form
    1,289,190.98/1,933,122.47 = 578,609.86/x
  3. Step 3: Cross multiply
    1,289,190.98x = 1,933,122.47 × 578,609.86
  4. Step 4: Simplify right side
    1,289,190.98x = 1,118,523,721,729.55
  5. Step 5: Solve for x
    x = 1,118,523,721,729.55/1,289,190.98
  6. Step 6: Final answer
    x = 867,616.78

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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.