Home / 501,107.12-691,527.48-274,756.40

Finding the Fourth Proportional to 501,107.12, 691,527.48 and 274,756.40

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Solution

The fourth proportional to 501,107.12, 691,527.48 and 274,756.40 is: 379,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,107.12 : 691,527.48 = 274,756.40 : x
  2. Step 2: Convert to fraction form
    501,107.12/691,527.48 = 274,756.40/x
  3. Step 3: Cross multiply
    501,107.12x = 691,527.48 × 274,756.40
  4. Step 4: Simplify right side
    501,107.12x = 190,001,600,905.87
  5. Step 5: Solve for x
    x = 190,001,600,905.87/501,107.12
  6. Step 6: Final answer
    x = 379,163.64

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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.