Home / 678,832.90-1,018,300.38-205,556.38

Finding the Fourth Proportional to 678,832.90, 1,018,300.38 and 205,556.38

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Solution

The fourth proportional to 678,832.90, 1,018,300.38 and 205,556.38 is: 308,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,832.90 : 1,018,300.38 = 205,556.38 : x
  2. Step 2: Convert to fraction form
    678,832.90/1,018,300.38 = 205,556.38/x
  3. Step 3: Cross multiply
    678,832.90x = 1,018,300.38 × 205,556.38
  4. Step 4: Simplify right side
    678,832.90x = 209,318,139,865.42
  5. Step 5: Solve for x
    x = 209,318,139,865.42/678,832.90
  6. Step 6: Final answer
    x = 308,350.02

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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.