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Finding the Fourth Proportional to 542,843.60, 814,265.40 and 262,907.60

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Solution

The fourth proportional to 542,843.60, 814,265.40 and 262,907.60 is: 394,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,843.60 : 814,265.40 = 262,907.60 : x
  2. Step 2: Convert to fraction form
    542,843.60/814,265.40 = 262,907.60/x
  3. Step 3: Cross multiply
    542,843.60x = 814,265.40 × 262,907.60
  4. Step 4: Simplify right side
    542,843.60x = 214,076,562,077.04
  5. Step 5: Solve for x
    x = 214,076,562,077.04/542,843.60
  6. Step 6: Final answer
    x = 394,361.40

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Half scale
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Double scale
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Similar ratio
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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.