Home / 428,140.49-590,566.55-275,377.73

Finding the Fourth Proportional to 428,140.49, 590,566.55 and 275,377.73

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Solution

The fourth proportional to 428,140.49, 590,566.55 and 275,377.73 is: 379,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,140.49 : 590,566.55 = 275,377.73 : x
  2. Step 2: Convert to fraction form
    428,140.49/590,566.55 = 275,377.73/x
  3. Step 3: Cross multiply
    428,140.49x = 590,566.55 × 275,377.73
  4. Step 4: Simplify right side
    428,140.49x = 162,628,871,623.21
  5. Step 5: Solve for x
    x = 162,628,871,623.21/428,140.49
  6. Step 6: Final answer
    x = 379,849.32

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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.