Home / 1,079,328.40-1,618,992.60-331,277.20

Finding the Fourth Proportional to 1,079,328.40, 1,618,992.60 and 331,277.20

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Solution

The fourth proportional to 1,079,328.40, 1,618,992.60 and 331,277.20 is: 496,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,328.40 : 1,618,992.60 = 331,277.20 : x
  2. Step 2: Convert to fraction form
    1,079,328.40/1,618,992.60 = 331,277.20/x
  3. Step 3: Cross multiply
    1,079,328.40x = 1,618,992.60 × 331,277.20
  4. Step 4: Simplify right side
    1,079,328.40x = 536,335,335,348.72
  5. Step 5: Solve for x
    x = 536,335,335,348.72/1,079,328.40
  6. Step 6: Final answer
    x = 496,915.80

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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.