Home / 428,696.10-591,628.19-247,415.67

Finding the Fourth Proportional to 428,696.10, 591,628.19 and 247,415.67

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Solution

The fourth proportional to 428,696.10, 591,628.19 and 247,415.67 is: 341,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,696.10 : 591,628.19 = 247,415.67 : x
  2. Step 2: Convert to fraction form
    428,696.10/591,628.19 = 247,415.67/x
  3. Step 3: Cross multiply
    428,696.10x = 591,628.19 × 247,415.67
  4. Step 4: Simplify right side
    428,696.10x = 146,378,083,782.66
  5. Step 5: Solve for x
    x = 146,378,083,782.66/428,696.10
  6. Step 6: Final answer
    x = 341,449.53

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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.