Home / 804,543.78-1,206,814.62-205,505.40

Finding the Fourth Proportional to 804,543.78, 1,206,814.62 and 205,505.40

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Solution

The fourth proportional to 804,543.78, 1,206,814.62 and 205,505.40 is: 308,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,543.78 : 1,206,814.62 = 205,505.40 : x
  2. Step 2: Convert to fraction form
    804,543.78/1,206,814.62 = 205,505.40/x
  3. Step 3: Cross multiply
    804,543.78x = 1,206,814.62 × 205,505.40
  4. Step 4: Simplify right side
    804,543.78x = 248,006,921,208.95
  5. Step 5: Solve for x
    x = 248,006,921,208.95/804,543.78
  6. Step 6: Final answer
    x = 308,257.83

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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.