Home / 754,355.12-1,040,755.31-427,633.10

Finding the Fourth Proportional to 754,355.12, 1,040,755.31 and 427,633.10

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Solution

The fourth proportional to 754,355.12, 1,040,755.31 and 427,633.10 is: 589,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,355.12 : 1,040,755.31 = 427,633.10 : x
  2. Step 2: Convert to fraction form
    754,355.12/1,040,755.31 = 427,633.10/x
  3. Step 3: Cross multiply
    754,355.12x = 1,040,755.31 × 427,633.10
  4. Step 4: Simplify right side
    754,355.12x = 445,061,421,624.11
  5. Step 5: Solve for x
    x = 445,061,421,624.11/754,355.12
  6. Step 6: Final answer
    x = 589,989.26

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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.