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Finding the Fourth Proportional to 511,477.60, 767,216.40 and 449,269.60

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Solution

The fourth proportional to 511,477.60, 767,216.40 and 449,269.60 is: 673,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,477.60 : 767,216.40 = 449,269.60 : x
  2. Step 2: Convert to fraction form
    511,477.60/767,216.40 = 449,269.60/x
  3. Step 3: Cross multiply
    511,477.60x = 767,216.40 × 449,269.60
  4. Step 4: Simplify right side
    511,477.60x = 344,687,005,141.44
  5. Step 5: Solve for x
    x = 344,687,005,141.44/511,477.60
  6. Step 6: Final answer
    x = 673,904.40

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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.