Home / 728,069.10-1,091,844.45-328,901.10

Finding the Fourth Proportional to 728,069.10, 1,091,844.45 and 328,901.10

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Solution

The fourth proportional to 728,069.10, 1,091,844.45 and 328,901.10 is: 493,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,069.10 : 1,091,844.45 = 328,901.10 : x
  2. Step 2: Convert to fraction form
    728,069.10/1,091,844.45 = 328,901.10/x
  3. Step 3: Cross multiply
    728,069.10x = 1,091,844.45 × 328,901.10
  4. Step 4: Simplify right side
    728,069.10x = 359,108,840,633.90
  5. Step 5: Solve for x
    x = 359,108,840,633.90/728,069.10
  6. Step 6: Final answer
    x = 493,234.56

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Double scale
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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.