Home / 1,311,814.60-1,967,888.04-512,992.35

Finding the Fourth Proportional to 1,311,814.60, 1,967,888.04 and 512,992.35

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Solution

The fourth proportional to 1,311,814.60, 1,967,888.04 and 512,992.35 is: 769,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,814.60 : 1,967,888.04 = 512,992.35 : x
  2. Step 2: Convert to fraction form
    1,311,814.60/1,967,888.04 = 512,992.35/x
  3. Step 3: Cross multiply
    1,311,814.60x = 1,967,888.04 × 512,992.35
  4. Step 4: Simplify right side
    1,311,814.60x = 1,009,511,510,176.49
  5. Step 5: Solve for x
    x = 1,009,511,510,176.49/1,311,814.60
  6. Step 6: Final answer
    x = 769,553.49

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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.