Home / 920,279.80-1,380,147.30-414,548.44

Finding the Fourth Proportional to 920,279.80, 1,380,147.30 and 414,548.44

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Solution

The fourth proportional to 920,279.80, 1,380,147.30 and 414,548.44 is: 621,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,279.80 : 1,380,147.30 = 414,548.44 : x
  2. Step 2: Convert to fraction form
    920,279.80/1,380,147.30 = 414,548.44/x
  3. Step 3: Cross multiply
    920,279.80x = 1,380,147.30 × 414,548.44
  4. Step 4: Simplify right side
    920,279.80x = 572,137,910,185.21
  5. Step 5: Solve for x
    x = 572,137,910,185.21/920,279.80
  6. Step 6: Final answer
    x = 621,699.95

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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.