Home / 1,311,735.09-1,967,205.45-458,647.83

Finding the Fourth Proportional to 1,311,735.09, 1,967,205.45 and 458,647.83

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Solution

The fourth proportional to 1,311,735.09, 1,967,205.45 and 458,647.83 is: 687,832.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,735.09 : 1,967,205.45 = 458,647.83 : x
  2. Step 2: Convert to fraction form
    1,311,735.09/1,967,205.45 = 458,647.83/x
  3. Step 3: Cross multiply
    1,311,735.09x = 1,967,205.45 × 458,647.83
  4. Step 4: Simplify right side
    1,311,735.09x = 902,254,510,806.67
  5. Step 5: Solve for x
    x = 902,254,510,806.67/1,311,735.09
  6. Step 6: Final answer
    x = 687,832.87

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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.