Home / 1,289,189.98-1,933,120.97-578,608.86

Finding the Fourth Proportional to 1,289,189.98, 1,933,120.97 and 578,608.86

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Solution

The fourth proportional to 1,289,189.98, 1,933,120.97 and 578,608.86 is: 867,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,189.98 : 1,933,120.97 = 578,608.86 : x
  2. Step 2: Convert to fraction form
    1,289,189.98/1,933,120.97 = 578,608.86/x
  3. Step 3: Cross multiply
    1,289,189.98x = 1,933,120.97 × 578,608.86
  4. Step 4: Simplify right side
    1,289,189.98x = 1,118,520,920,693.79
  5. Step 5: Solve for x
    x = 1,118,520,920,693.79/1,289,189.98
  6. Step 6: Final answer
    x = 867,615.28

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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.