Home / 728,745.03-1,005,672.96-406,476

Finding the Fourth Proportional to 728,745.03, 1,005,672.96 and 406,476

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Solution

The fourth proportional to 728,745.03, 1,005,672.96 and 406,476 is: 560,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,745.03 : 1,005,672.96 = 406,476 : x
  2. Step 2: Convert to fraction form
    728,745.03/1,005,672.96 = 406,476/x
  3. Step 3: Cross multiply
    728,745.03x = 1,005,672.96 × 406,476
  4. Step 4: Simplify right side
    728,745.03x = 408,781,922,088.96
  5. Step 5: Solve for x
    x = 408,781,922,088.96/728,745.03
  6. Step 6: Final answer
    x = 560,939.57

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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.