Home / 1,327,515.59-1,991,285.00-428,957.48

Finding the Fourth Proportional to 1,327,515.59, 1,991,285.00 and 428,957.48

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Solution

The fourth proportional to 1,327,515.59, 1,991,285.00 and 428,957.48 is: 643,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,515.59 : 1,991,285.00 = 428,957.48 : x
  2. Step 2: Convert to fraction form
    1,327,515.59/1,991,285.00 = 428,957.48/x
  3. Step 3: Cross multiply
    1,327,515.59x = 1,991,285.00 × 428,957.48
  4. Step 4: Simplify right side
    1,327,515.59x = 854,176,596,212.97
  5. Step 5: Solve for x
    x = 854,176,596,212.97/1,327,515.59
  6. Step 6: Final answer
    x = 643,439.97

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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.