Home / 831,890.83-1,148,009.33-449,917.61

Finding the Fourth Proportional to 831,890.83, 1,148,009.33 and 449,917.61

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Solution

The fourth proportional to 831,890.83, 1,148,009.33 and 449,917.61 is: 620,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,890.83 : 1,148,009.33 = 449,917.61 : x
  2. Step 2: Convert to fraction form
    831,890.83/1,148,009.33 = 449,917.61/x
  3. Step 3: Cross multiply
    831,890.83x = 1,148,009.33 × 449,917.61
  4. Step 4: Simplify right side
    831,890.83x = 516,509,614,011.30
  5. Step 5: Solve for x
    x = 516,509,614,011.30/831,890.83
  6. Step 6: Final answer
    x = 620,886.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.