Home / 687,623.33-1,031,201.41-238,239.28

Finding the Fourth Proportional to 687,623.33, 1,031,201.41 and 238,239.28

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Solution

The fourth proportional to 687,623.33, 1,031,201.41 and 238,239.28 is: 357,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,623.33 : 1,031,201.41 = 238,239.28 : x
  2. Step 2: Convert to fraction form
    687,623.33/1,031,201.41 = 238,239.28/x
  3. Step 3: Cross multiply
    687,623.33x = 1,031,201.41 × 238,239.28
  4. Step 4: Simplify right side
    687,623.33x = 245,672,676,122.93
  5. Step 5: Solve for x
    x = 245,672,676,122.93/687,623.33
  6. Step 6: Final answer
    x = 357,277.98

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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.