Home / 754,355.50-1,040,755.83-427,633.48

Finding the Fourth Proportional to 754,355.50, 1,040,755.83 and 427,633.48

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Solution

The fourth proportional to 754,355.50, 1,040,755.83 and 427,633.48 is: 589,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,355.50 : 1,040,755.83 = 427,633.48 : x
  2. Step 2: Convert to fraction form
    754,355.50/1,040,755.83 = 427,633.48/x
  3. Step 3: Cross multiply
    754,355.50x = 1,040,755.83 × 427,633.48
  4. Step 4: Simplify right side
    754,355.50x = 445,062,032,673.13
  5. Step 5: Solve for x
    x = 445,062,032,673.13/754,355.50
  6. Step 6: Final answer
    x = 589,989.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.