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Finding the Fourth Proportional to 548,605.20, 822,907.80 and 455,293.20

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Solution

The fourth proportional to 548,605.20, 822,907.80 and 455,293.20 is: 682,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,605.20 : 822,907.80 = 455,293.20 : x
  2. Step 2: Convert to fraction form
    548,605.20/822,907.80 = 455,293.20/x
  3. Step 3: Cross multiply
    548,605.20x = 822,907.80 × 455,293.20
  4. Step 4: Simplify right side
    548,605.20x = 374,664,325,566.96
  5. Step 5: Solve for x
    x = 374,664,325,566.96/548,605.20
  6. Step 6: Final answer
    x = 682,939.80

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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.