Home / 1,339,481.67-2,009,239.11-392,871.93

Finding the Fourth Proportional to 1,339,481.67, 2,009,239.11 and 392,871.93

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Solution

The fourth proportional to 1,339,481.67, 2,009,239.11 and 392,871.93 is: 589,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,481.67 : 2,009,239.11 = 392,871.93 : x
  2. Step 2: Convert to fraction form
    1,339,481.67/2,009,239.11 = 392,871.93/x
  3. Step 3: Cross multiply
    1,339,481.67x = 2,009,239.11 × 392,871.93
  4. Step 4: Simplify right side
    1,339,481.67x = 789,373,646,977.18
  5. Step 5: Solve for x
    x = 789,373,646,977.18/1,339,481.67
  6. Step 6: Final answer
    x = 589,312.77

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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.