Home / 829,885.80-1,244,537.10-380,821.80

Finding the Fourth Proportional to 829,885.80, 1,244,537.10 and 380,821.80

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Solution

The fourth proportional to 829,885.80, 1,244,537.10 and 380,821.80 is: 571,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,885.80 : 1,244,537.10 = 380,821.80 : x
  2. Step 2: Convert to fraction form
    829,885.80/1,244,537.10 = 380,821.80/x
  3. Step 3: Cross multiply
    829,885.80x = 1,244,537.10 × 380,821.80
  4. Step 4: Simplify right side
    829,885.80x = 473,946,858,588.78
  5. Step 5: Solve for x
    x = 473,946,858,588.78/829,885.80
  6. Step 6: Final answer
    x = 571,098.89

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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.