Home / 829,954.80-1,244,640.60-380,890.80

Finding the Fourth Proportional to 829,954.80, 1,244,640.60 and 380,890.80

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Solution

The fourth proportional to 829,954.80, 1,244,640.60 and 380,890.80 is: 571,202.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,954.80 : 1,244,640.60 = 380,890.80 : x
  2. Step 2: Convert to fraction form
    829,954.80/1,244,640.60 = 380,890.80/x
  3. Step 3: Cross multiply
    829,954.80x = 1,244,640.60 × 380,890.80
  4. Step 4: Simplify right side
    829,954.80x = 474,072,153,846.48
  5. Step 5: Solve for x
    x = 474,072,153,846.48/829,954.80
  6. Step 6: Final answer
    x = 571,202.38

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Double scale
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1.5x scale

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.