Home / 820,548.34-1,231,372.30-288,070.96

Finding the Fourth Proportional to 820,548.34, 1,231,372.30 and 288,070.96

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Solution

The fourth proportional to 820,548.34, 1,231,372.30 and 288,070.96 is: 432,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,548.34 : 1,231,372.30 = 288,070.96 : x
  2. Step 2: Convert to fraction form
    820,548.34/1,231,372.30 = 288,070.96/x
  3. Step 3: Cross multiply
    820,548.34x = 1,231,372.30 × 288,070.96
  4. Step 4: Simplify right side
    820,548.34x = 354,722,600,578.41
  5. Step 5: Solve for x
    x = 354,722,600,578.41/820,548.34
  6. Step 6: Final answer
    x = 432,299.46

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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.