Home / 729,130.60-1,093,695.90-329,784.40

Finding the Fourth Proportional to 729,130.60, 1,093,695.90 and 329,784.40

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Solution

The fourth proportional to 729,130.60, 1,093,695.90 and 329,784.40 is: 494,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,130.60 : 1,093,695.90 = 329,784.40 : x
  2. Step 2: Convert to fraction form
    729,130.60/1,093,695.90 = 329,784.40/x
  3. Step 3: Cross multiply
    729,130.60x = 1,093,695.90 × 329,784.40
  4. Step 4: Simplify right side
    729,130.60x = 360,683,846,163.96
  5. Step 5: Solve for x
    x = 360,683,846,163.96/729,130.60
  6. Step 6: Final answer
    x = 494,676.60

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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.