Home / 2,109,939.44-3,164,909.21-512,491.76

Finding the Fourth Proportional to 2,109,939.44, 3,164,909.21 and 512,491.76

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Solution

The fourth proportional to 2,109,939.44, 3,164,909.21 and 512,491.76 is: 768,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,939.44 : 3,164,909.21 = 512,491.76 : x
  2. Step 2: Convert to fraction form
    2,109,939.44/3,164,909.21 = 512,491.76/x
  3. Step 3: Cross multiply
    2,109,939.44x = 3,164,909.21 × 512,491.76
  4. Step 4: Simplify right side
    2,109,939.44x = 1,621,989,900,466.61
  5. Step 5: Solve for x
    x = 1,621,989,900,466.61/2,109,939.44
  6. Step 6: Final answer
    x = 768,737.66

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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.