Home / 428,265.15-590,738.29-275,502.25

Finding the Fourth Proportional to 428,265.15, 590,738.29 and 275,502.25

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Solution

The fourth proportional to 428,265.15, 590,738.29 and 275,502.25 is: 380,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,265.15 : 590,738.29 = 275,502.25 : x
  2. Step 2: Convert to fraction form
    428,265.15/590,738.29 = 275,502.25/x
  3. Step 3: Cross multiply
    428,265.15x = 590,738.29 × 275,502.25
  4. Step 4: Simplify right side
    428,265.15x = 162,749,728,056.15
  5. Step 5: Solve for x
    x = 162,749,728,056.15/428,265.15
  6. Step 6: Final answer
    x = 380,020.95

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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.