Home / 1,022,860.89-1,534,236.09-312,889

Finding the Fourth Proportional to 1,022,860.89, 1,534,236.09 and 312,889

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Solution

The fourth proportional to 1,022,860.89, 1,534,236.09 and 312,889 is: 469,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,860.89 : 1,534,236.09 = 312,889 : x
  2. Step 2: Convert to fraction form
    1,022,860.89/1,534,236.09 = 312,889/x
  3. Step 3: Cross multiply
    1,022,860.89x = 1,534,236.09 × 312,889
  4. Step 4: Simplify right side
    1,022,860.89x = 480,045,595,964.01
  5. Step 5: Solve for x
    x = 480,045,595,964.01/1,022,860.89
  6. Step 6: Final answer
    x = 469,316.60

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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.