Home / 428,716.67-591,677.78-247,477.23

Finding the Fourth Proportional to 428,716.67, 591,677.78 and 247,477.23

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Solution

The fourth proportional to 428,716.67, 591,677.78 and 247,477.23 is: 341,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,716.67 : 591,677.78 = 247,477.23 : x
  2. Step 2: Convert to fraction form
    428,716.67/591,677.78 = 247,477.23/x
  3. Step 3: Cross multiply
    428,716.67x = 591,677.78 × 247,477.23
  4. Step 4: Simplify right side
    428,716.67x = 146,426,776,809.56
  5. Step 5: Solve for x
    x = 146,426,776,809.56/428,716.67
  6. Step 6: Final answer
    x = 341,546.73

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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.