Home / 547,621.20-821,431.80-173,644.20

Finding the Fourth Proportional to 547,621.20, 821,431.80 and 173,644.20

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Solution

The fourth proportional to 547,621.20, 821,431.80 and 173,644.20 is: 260,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,621.20 : 821,431.80 = 173,644.20 : x
  2. Step 2: Convert to fraction form
    547,621.20/821,431.80 = 173,644.20/x
  3. Step 3: Cross multiply
    547,621.20x = 821,431.80 × 173,644.20
  4. Step 4: Simplify right side
    547,621.20x = 142,636,867,765.56
  5. Step 5: Solve for x
    x = 142,636,867,765.56/547,621.20
  6. Step 6: Final answer
    x = 260,466.30

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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.