Home / 1,079,256.60-1,618,884.90-331,205.40

Finding the Fourth Proportional to 1,079,256.60, 1,618,884.90 and 331,205.40

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Solution

The fourth proportional to 1,079,256.60, 1,618,884.90 and 331,205.40 is: 496,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,256.60 : 1,618,884.90 = 331,205.40 : x
  2. Step 2: Convert to fraction form
    1,079,256.60/1,618,884.90 = 331,205.40/x
  3. Step 3: Cross multiply
    1,079,256.60x = 1,618,884.90 × 331,205.40
  4. Step 4: Simplify right side
    1,079,256.60x = 536,183,420,858.46
  5. Step 5: Solve for x
    x = 536,183,420,858.46/1,079,256.60
  6. Step 6: Final answer
    x = 496,808.10

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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.