Home / 829,450.28-1,244,839.74-430,205.48

Finding the Fourth Proportional to 829,450.28, 1,244,839.74 and 430,205.48

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Solution

The fourth proportional to 829,450.28, 1,244,839.74 and 430,205.48 is: 645,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,450.28 : 1,244,839.74 = 430,205.48 : x
  2. Step 2: Convert to fraction form
    829,450.28/1,244,839.74 = 430,205.48/x
  3. Step 3: Cross multiply
    829,450.28x = 1,244,839.74 × 430,205.48
  4. Step 4: Simplify right side
    829,450.28x = 535,536,877,869.78
  5. Step 5: Solve for x
    x = 535,536,877,869.78/829,450.28
  6. Step 6: Final answer
    x = 645,652.78

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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.