Home / 446,431.20-669,646.80-259,807.20

Finding the Fourth Proportional to 446,431.20, 669,646.80 and 259,807.20

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Solution

The fourth proportional to 446,431.20, 669,646.80 and 259,807.20 is: 389,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,431.20 : 669,646.80 = 259,807.20 : x
  2. Step 2: Convert to fraction form
    446,431.20/669,646.80 = 259,807.20/x
  3. Step 3: Cross multiply
    446,431.20x = 669,646.80 × 259,807.20
  4. Step 4: Simplify right side
    446,431.20x = 173,979,060,096.96
  5. Step 5: Solve for x
    x = 173,979,060,096.96/446,431.20
  6. Step 6: Final answer
    x = 389,710.80

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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.