Home / 698,755.89-1,047,822.03-486,885.09

Finding the Fourth Proportional to 698,755.89, 1,047,822.03 and 486,885.09

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Solution

The fourth proportional to 698,755.89, 1,047,822.03 and 486,885.09 is: 730,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,755.89 : 1,047,822.03 = 486,885.09 : x
  2. Step 2: Convert to fraction form
    698,755.89/1,047,822.03 = 486,885.09/x
  3. Step 3: Cross multiply
    698,755.89x = 1,047,822.03 × 486,885.09
  4. Step 4: Simplify right side
    698,755.89x = 510,168,923,380.53
  5. Step 5: Solve for x
    x = 510,168,923,380.53/698,755.89
  6. Step 6: Final answer
    x = 730,110.37

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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.