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Finding the Fourth Proportional to 816,555.10, 1,224,249.45 and 366,907.90

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Solution

The fourth proportional to 816,555.10, 1,224,249.45 and 366,907.90 is: 550,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,555.10 : 1,224,249.45 = 366,907.90 : x
  2. Step 2: Convert to fraction form
    816,555.10/1,224,249.45 = 366,907.90/x
  3. Step 3: Cross multiply
    816,555.10x = 1,224,249.45 × 366,907.90
  4. Step 4: Simplify right side
    816,555.10x = 449,186,794,775.66
  5. Step 5: Solve for x
    x = 449,186,794,775.66/816,555.10
  6. Step 6: Final answer
    x = 550,099.80

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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.