Home / 428,236.18-590,698.69-275,473.55

Finding the Fourth Proportional to 428,236.18, 590,698.69 and 275,473.55

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Solution

The fourth proportional to 428,236.18, 590,698.69 and 275,473.55 is: 379,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,236.18 : 590,698.69 = 275,473.55 : x
  2. Step 2: Convert to fraction form
    428,236.18/590,698.69 = 275,473.55/x
  3. Step 3: Cross multiply
    428,236.18x = 590,698.69 × 275,473.55
  4. Step 4: Simplify right side
    428,236.18x = 162,721,865,114.65
  5. Step 5: Solve for x
    x = 162,721,865,114.65/428,236.18
  6. Step 6: Final answer
    x = 379,981.59

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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.