Home / 1,384,147.80-2,076,221.70-437,808.60

Finding the Fourth Proportional to 1,384,147.80, 2,076,221.70 and 437,808.60

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Solution

The fourth proportional to 1,384,147.80, 2,076,221.70 and 437,808.60 is: 656,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,147.80 : 2,076,221.70 = 437,808.60 : x
  2. Step 2: Convert to fraction form
    1,384,147.80/2,076,221.70 = 437,808.60/x
  3. Step 3: Cross multiply
    1,384,147.80x = 2,076,221.70 × 437,808.60
  4. Step 4: Simplify right side
    1,384,147.80x = 908,987,715,766.62
  5. Step 5: Solve for x
    x = 908,987,715,766.62/1,384,147.80
  6. Step 6: Final answer
    x = 656,712.90

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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.