Home / 428,446.41-642,724.89-144,014.30

Finding the Fourth Proportional to 428,446.41, 642,724.89 and 144,014.30

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Solution

The fourth proportional to 428,446.41, 642,724.89 and 144,014.30 is: 216,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,446.41 : 642,724.89 = 144,014.30 : x
  2. Step 2: Convert to fraction form
    428,446.41/642,724.89 = 144,014.30/x
  3. Step 3: Cross multiply
    428,446.41x = 642,724.89 × 144,014.30
  4. Step 4: Simplify right side
    428,446.41x = 92,561,575,125.93
  5. Step 5: Solve for x
    x = 92,561,575,125.93/428,446.41
  6. Step 6: Final answer
    x = 216,040.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.