Home / 428,410.66-591,271.82-273,428.85

Finding the Fourth Proportional to 428,410.66, 591,271.82 and 273,428.85

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Solution

The fourth proportional to 428,410.66, 591,271.82 and 273,428.85 is: 377,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,410.66 : 591,271.82 = 273,428.85 : x
  2. Step 2: Convert to fraction form
    428,410.66/591,271.82 = 273,428.85/x
  3. Step 3: Cross multiply
    428,410.66x = 591,271.82 × 273,428.85
  4. Step 4: Simplify right side
    428,410.66x = 161,670,774,395.10
  5. Step 5: Solve for x
    x = 161,670,774,395.10/428,410.66
  6. Step 6: Final answer
    x = 377,373.37

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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.