Home / 428,264.20-591,293.28-382,796.47

Finding the Fourth Proportional to 428,264.20, 591,293.28 and 382,796.47

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Solution

The fourth proportional to 428,264.20, 591,293.28 and 382,796.47 is: 528,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,264.20 : 591,293.28 = 382,796.47 : x
  2. Step 2: Convert to fraction form
    428,264.20/591,293.28 = 382,796.47/x
  3. Step 3: Cross multiply
    428,264.20x = 591,293.28 × 382,796.47
  4. Step 4: Simplify right side
    428,264.20x = 226,344,980,318.72
  5. Step 5: Solve for x
    x = 226,344,980,318.72/428,264.20
  6. Step 6: Final answer
    x = 528,517.16

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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.