Home / 1,310,540.40-1,966,847.40-512,204.40

Finding the Fourth Proportional to 1,310,540.40, 1,966,847.40 and 512,204.40

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Solution

The fourth proportional to 1,310,540.40, 1,966,847.40 and 512,204.40 is: 768,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,540.40 : 1,966,847.40 = 512,204.40 : x
  2. Step 2: Convert to fraction form
    1,310,540.40/1,966,847.40 = 512,204.40/x
  3. Step 3: Cross multiply
    1,310,540.40x = 1,966,847.40 × 512,204.40
  4. Step 4: Simplify right side
    1,310,540.40x = 1,007,427,892,408.56
  5. Step 5: Solve for x
    x = 1,007,427,892,408.56/1,310,540.40
  6. Step 6: Final answer
    x = 768,711.82

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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.