Home / 740,301.18-1,109,985.21-628,020.78

Finding the Fourth Proportional to 740,301.18, 1,109,985.21 and 628,020.78

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Solution

The fourth proportional to 740,301.18, 1,109,985.21 and 628,020.78 is: 941,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,301.18 : 1,109,985.21 = 628,020.78 : x
  2. Step 2: Convert to fraction form
    740,301.18/1,109,985.21 = 628,020.78/x
  3. Step 3: Cross multiply
    740,301.18x = 1,109,985.21 × 628,020.78
  4. Step 4: Simplify right side
    740,301.18x = 697,093,777,372.66
  5. Step 5: Solve for x
    x = 697,093,777,372.66/740,301.18
  6. Step 6: Final answer
    x = 941,635.37

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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.