Home / 804,912.70-1,205,986.65-383,280.70

Finding the Fourth Proportional to 804,912.70, 1,205,986.65 and 383,280.70

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Solution

The fourth proportional to 804,912.70, 1,205,986.65 and 383,280.70 is: 574,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,912.70 : 1,205,986.65 = 383,280.70 : x
  2. Step 2: Convert to fraction form
    804,912.70/1,205,986.65 = 383,280.70/x
  3. Step 3: Cross multiply
    804,912.70x = 1,205,986.65 × 383,280.70
  4. Step 4: Simplify right side
    804,912.70x = 462,231,407,402.66
  5. Step 5: Solve for x
    x = 462,231,407,402.66/804,912.70
  6. Step 6: Final answer
    x = 574,262.78

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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.