Home / 728,923.30-1,093,056.90-329,358.40

Finding the Fourth Proportional to 728,923.30, 1,093,056.90 and 329,358.40

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Solution

The fourth proportional to 728,923.30, 1,093,056.90 and 329,358.40 is: 493,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,923.30 : 1,093,056.90 = 329,358.40 : x
  2. Step 2: Convert to fraction form
    728,923.30/1,093,056.90 = 329,358.40/x
  3. Step 3: Cross multiply
    728,923.30x = 1,093,056.90 × 329,358.40
  4. Step 4: Simplify right side
    728,923.30x = 360,007,471,692.96
  5. Step 5: Solve for x
    x = 360,007,471,692.96/728,923.30
  6. Step 6: Final answer
    x = 493,889.37

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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.