Home / 428,973.12-591,963.17-235,376.58

Finding the Fourth Proportional to 428,973.12, 591,963.17 and 235,376.58

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Solution

The fourth proportional to 428,973.12, 591,963.17 and 235,376.58 is: 324,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,973.12 : 591,963.17 = 235,376.58 : x
  2. Step 2: Convert to fraction form
    428,973.12/591,963.17 = 235,376.58/x
  3. Step 3: Cross multiply
    428,973.12x = 591,963.17 × 235,376.58
  4. Step 4: Simplify right side
    428,973.12x = 139,334,266,440.56
  5. Step 5: Solve for x
    x = 139,334,266,440.56/428,973.12
  6. Step 6: Final answer
    x = 324,808.85

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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.