Home / 728,999.10-1,093,826.70-329,434.20

Finding the Fourth Proportional to 728,999.10, 1,093,826.70 and 329,434.20

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Solution

The fourth proportional to 728,999.10, 1,093,826.70 and 329,434.20 is: 494,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,999.10 : 1,093,826.70 = 329,434.20 : x
  2. Step 2: Convert to fraction form
    728,999.10/1,093,826.70 = 329,434.20/x
  3. Step 3: Cross multiply
    728,999.10x = 1,093,826.70 × 329,434.20
  4. Step 4: Simplify right side
    728,999.10x = 360,343,923,853.14
  5. Step 5: Solve for x
    x = 360,343,923,853.14/728,999.10
  6. Step 6: Final answer
    x = 494,299.55

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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.