Home / 728,343.32-1,005,114.44-406,046.96

Finding the Fourth Proportional to 728,343.32, 1,005,114.44 and 406,046.96

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Solution

The fourth proportional to 728,343.32, 1,005,114.44 and 406,046.96 is: 560,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,343.32 : 1,005,114.44 = 406,046.96 : x
  2. Step 2: Convert to fraction form
    728,343.32/1,005,114.44 = 406,046.96/x
  3. Step 3: Cross multiply
    728,343.32x = 1,005,114.44 × 406,046.96
  4. Step 4: Simplify right side
    728,343.32x = 408,123,662,814.10
  5. Step 5: Solve for x
    x = 408,123,662,814.10/728,343.32
  6. Step 6: Final answer
    x = 560,345.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.